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Vol. 87 No. 4 December 1958
National Science Development Board
Paulino J. Garcia, M.D., ChairmanCasimiro del Rosario, Ph.D.
Vice Chairman and Executive Director
Members of the Board
Teodoro Evangelista, LL.B., LL.D. Florencio A. Medina, M.S.Isidro Macaspac, M.A. Jose J. Mirasol, Ph.D.Oscar B. Mapua, B.S.C.E. Crisostomo Ortigas, M.S.M.EJoaquin Marañon, D.Sc. Antonio G. Sison, M.D.Gregorio Y. Zara, D.Sc.
The Philippine Journal of Science
Published quarterly by the National Institute of Science and Technology(Formely Bureau of Science), P.O. Box 774, Manila, Philippines
Joaquin Marañon, D.Sc.Editor
Eduardo Quisumbing, Ph.D. Canuto G. Manuel, D.Sc. Associate Editor Associate Editor
Mauro Garcia, B.S.E.Copy Editor
Contributing Editors
Agriculture Nuclear Science MedicineAnacleto B. Coronel, D.V.M. Pedro G. Afable, B.S.C.E Walfrido de Leon, M.D., D.T.MEugenio E. Cruz, M.S. Julian Banzon, Ph.D. Virgilio Ramos, M.D.Nemesio B. Mendiola, Ph.D. Paulo C. Campos, M.D. Rogelio Relova, M.D.Leopoldo B. Uichanco, D.Sc. Ignacio S. Salcedo, Ph.D. Agerico B.M. Sison, M.D.
Anthropology Food and Nutrition ZoologyH. Otley Beyer, M.A. Bernardo Acena, Ph.D. Leopoldo S. Clemente, Ph.D.Robert B. Fox, Ph.D. Conrado R. Pascual, M.D. Heraclio R. Montalban, M.A.E. Arsenio Manuel M.A. Juan S. Salcedo, Jr., M.D. Deogracias V. Villadodid, Ph.D.Marcelino N. Maceda, Ph.D. Florencio A. Soliven, M.S. Lope M. Yutuc, D.V.M.
Botany GeologyJose M. Capinpin, Ph.D. Antonio D. Alvir, Ph.D.Tanquilino G. Fajardo, Ph.D. Cesar B. Ibañez, M.S.Macario A. Palo, B.S.A. Elpidio Vera, M.S.Gregorio Velasquez, Ph.D. Mateo T. Tupas, Ph.D.
Chemistry Industrial TechnologyDionisio Birosel, Ph.D. Manuel I. Felizardo, B.S.M.E.Aurelio O. Cruz, Phar. Chem. Gil O. Opiana, B.S.A., Chem. Eng.Marcos M. Alicante, Ph.D. Mariano P. Ramiro, Ph.D.Patrocinio Valenzuela, Ph.D. Anastacio L. Teodoro, Ph.D.
Vol. 87 No. 3 September 1958
National Science Development Board
Paulino J. Garcia, M.D., ChairmanCasimiro del Rosario, Ph.D.
Vice Chairman and Executive Director
Members of the Board
Teodoro Evangelista, LL.B., LL.D. Florencio A. Medina, M.S.Isidro Macaspac, M.A. Jose J. Mirasol, Ph.D.Oscar B. Mapua, B.S.C.E. Crisostomo Ortigas, M.S.M.EJoaquin Marañon, D.Sc. Antonio G. Sison, M.D.Gregorio Y. Zara, D.Sc.
The Philippine Journal of Science
Published quarterly by the National Institute of Science and Technology(Formely Bureau of Science), P.O. Box 774, Manila, Philippines
Joaquin Marañon, D.Sc.Editor
Eduardo Quisumbing, Ph.D. Canuto G. Manuel, D.Sc. Associate Editor Associate Editor
Mauro Garcia, B.S.E.Copy Editor
Contributing Editors
Agriculture Nuclear Science MedicineAnacleto B. Coronel, D.V.M. Pedro G. Afable, B.S.C.E Walfrido de Leon, M.D., D.T.MEugenio E. Cruz, M.S. Julian Banzon, Ph.D. Virgilio Ramos, M.D.Nemesio B. Mendiola, Ph.D. Paulo C. Campos, M.D. Rogelio Relova, M.D.Leopoldo B. Uichanco, D.Sc. Ignacio S. Salcedo, Ph.D. Agerico B.M. Sison, M.D.
Anthropology Food and Nutrition ZoologyH. Otley Beyer, M.A. Bernardo Acena, Ph.D. Leopoldo S. Clemente, Ph.D.Robert B. Fox, Ph.D. Conrado R. Pascual, M.D. Heraclio R. Montalban, M.A.E. Arsenio Manuel M.A. Juan S. Salcedo, Jr., M.D. Deogracias V. Villadodid, Ph.D.Marcelino N. Maceda, Ph.D. Florencio A. Soliven, M.S. Lope M. Yutuc, D.V.M.
Botany GeologyJose M. Capinpin, Ph.D. Antonio D. Alvir, Ph.D.Tanquilino G. Fajardo, Ph.D. Cesar B. Ibañez, M.S.Macario A. Palo, B.S.A. Elpidio Vera, M.S.Gregorio Velasquez, Ph.D. Mateo T. Tupas, Ph.D.
Chemistry Industrial TechnologyDionisio Birosel, Ph.D. Manuel I. Felizardo, B.S.M.E.Aurelio O. Cruz, Phar. Chem. Gil O. Opiana, B.S.A., Chem. Eng.Marcos M. Alicante, Ph.D. Mariano P. Ramiro, Ph.D.Patrocinio Valenzuela, Ph.D. Anastacio L. Teodoro, Ph.D.
Vol. 87 No.1 March 1958
Published by the Institute of Science and Technology(Formerly Bureau of Science)
[Entered as second-class matter at the Post Office at Manila, Phillipines.]
Joaquin Marañon, D.Sc., EditorEduardo Quisumbing, Ph D., Associate Editor (on leave)
Mauro Garcia, B.S.E., Copy EditorAngel Y. Lira, B.S.C., Junior Copy Editor
Contributing Editors
Anthropology
H.O. Beyer, M.A.;Robert B. Fox, Ph.D.; Ricardo E. Galang, M.A
Botany
Feliciano M. Clara, Ph.D.; E.B. Copeland Ph.D.; T.G. Fajardo, Ph.DA.F. Fischer, C.E., F.M.; Nemesio B. Mendiola, Ph.D
Nicanor G. Teodoro, Ph.D.
Chemistry
F.T. Adriano, Ph.D.; R.H. Aguilar, Ch.E.; Marcos M. Alicante, Ph.D.Felix V. Espino, Ch.E.; Manuel L. Roxas, Ph.D.;
Patrocinio Valenzuela, Ph.D.
Geology
Leopoldo F. Abad, M.S.; Victoriano Elicaño, B.S.; Antonio D. Alvir, Ph.D
Medicine
Manuel V. Arguelles, M.D.; Arturo Garcia, M.D.; Onofre Garcia, M.D. Hilario Lara, M.D.; Walfirdo De Leon, M.D.
Cristobal Manalang, M.D.; Daniel de la Paz, M.D.; Carmelo Reyes, M.D.Jose Rodriguez, M.D.; Agerico B. M. Sison, M.D.
Antonio Sison, M.D.; H.W. Wade, M.D..
Zoology
Leopoldo S. Clemente, Ph.D.; Canuto G. Manuel, D.Sc. Gonzalo Merino, Ph.D.; Heraclio R. Montalban, M.A.
Faustino Q. Otanes, M.S.; Manuel D. Sumulong, M.S., D.V.M.Leopoldo B. Uichanco, D.Sc.; Agustin F. Umali, B.S.
Deogracias V. Villadolid, Ph.D.; Lope M. Yutuc, D.V.M.
Vol. 86 No.4 December 1957
Published by the Institute of Science and Technology(Formerly Bureau of Science)
[Entered as second-class matter at the Post Office at Manila, Phillipines.]
Joaquin Marañon, D.Sc., EditorEduardo Quisumbing, Ph D., Associate Editor
Mauro Garcia, B.S.E., Copy EditorAngel Y. Lira, B.S.C., Junior Copy Editor
Contributing Editors
Anthropology
H.O. Beyer, M.A.;Robert B. Fox, Ph.D.; Ricardo E. Galang, M.A
Botany
Feliciano M. Clara, Ph.D.; E.B. Copeland Ph.D.; T.G. Fajardo, Ph.DA.F. Fischer, C.E., F.M.; Nemesio B. Mendiola, Ph.D
Nicanor G. Teodoro, Ph.D.
Chemistry
F.T. Adriano, Ph.D.; R.H. Aguilar, Ch.E.; Marcos M. Alicante, Ph.D.Felix V. Espino, Ch.E.; Manuel L. Roxas, Ph.D.;
Patrocinio Valenzuela, Ph.D.
Geology
Leopoldo F. Abad, M.S.; Victoriano Elicaño, B.S.; Antonio D. Alvir, Ph.D
Medicine
Manuel V. Arguelles, M.D.; Arturo Garcia, M.D.; Onofre Garcia, M.D. Hilario Lara, M.D.;Liborio Gomez, M.D.; Walfirdo De Leon, M.D.
Cristobal Manalang, M.D.; Daniel de la Paz, M.D.; Carmelo Reyes, M.D.Jose Rodriguez, M.D.; Agerico B. M. Sison, M.D.
Antonio Sison, M.D.; H.W. Wade, M.D..
Zoology
Leopoldo S. Clemente, Ph.D.; Canuto G. Manuel, D.Sc. Gonzalo Merino, Ph.D.; Heraclio R. Montalban, M.A.
Faustino Q. Otanes, M.S.; Manuel D. Sumulong, M.S., D.V.M.Leopoldo B. Uichanco, D.Sc.; Agustin F. Umali, B.S.
Deogracias V. Villadolid, Ph.D.; Lope M. Yutuc, D.V.M.
Vol. 86 No.3 September 1957
Published by the Institute of Science and Technology(Formerly Bureau of Science)
[Entered as second-class matter at the Post Office at Manila, Phillipines.]
Joaquin Marañon, D.Sc., EditorEduardo Quisumbing, Ph D., Associate Editor
Mauro Garcia, B.S.E., Copy EditorAngel Y. Lira, B.S.C., Junior Copy Editor
Contributing Editors
Anthropology
H.O. Beyer, M.A.;Robert B. Fox, Ph.D.; Ricardo E. Galang, M.A
Botany
Feliciano M. Clara, Ph.D.; E.B. Copeland Ph.D.; T.G. Fajardo, Ph.DA.F. Fischer, C.E., F.M.; Nemesio B. Mendiola, Ph.D
Nicanor G. Teodoro, Ph.D.
Chemistry
F.T. Adriano, Ph.D.; R.H. Aguilar, Ch.E.; Marcos M. Alicante, Ph.D.Felix V. Espino, Ch.E.; Manuel L. Roxas, Ph.D.;
Patrocinio Valenzuela, Ph.D.
Geology
Leopoldo F. Abad, M.S.; Victoriano Elicaño, B.S.; Antonio D. Alvir, Ph.D
Medicine
Manuel V. Arguelles, M.D.; Arturo Garcia, M.D.; Onofre Garcia, M.D. Hilario Lara, M.D.;Liborio Gomez, M.D.; Walfirdo De Leon, M.D.
Cristobal Manalang, M.D.; Daniel de la Paz, M.D.; Carmelo Reyes, M.D.Jose Rodriguez, M.D.; Agerico B. M. Sison, M.D.
Antonio Sison, M.D.; H.W. Wade, M.D..
Zoology
Leopoldo S. Clemente, Ph.D.; Canuto G. Manuel, D.Sc. Gonzalo Merino, Ph.D.; Heraclio R. Montalban, M.A.
Faustino Q. Otanes, M.S.; Manuel D. Sumulong, M.S., D.V.M.Leopoldo B. Uichanco, D.Sc.; Agustin F. Umali, B.S.
Deogracias V. Villadolid, Ph.D.; Lope M. Yutuc, D.V.M.
Vol. 86 No.2 June 1957
Published by the Institute of Science and Technology(Formerly Bureau of Science)
[Entered as second-class matter at the Post Office at Manila, Phillipines.]
Joaquin Marañon, D.Sc., EditorEduardo Quisumbing, Ph D., Associate Editor
Mauro Garcia, B.S.E., Copy EditorAngel Y. Lira, B.S.C., Junior Copy Editor
Contributing Editors
Anthropology
H.O. Beyer, M.A.;Robert B. Fox, Ph.D.; Ricardo E. Galang, M.A
Botany
Feliciano M. Clara, Ph.D.; E.B. Copeland Ph.D.; T.G. Fajardo, Ph.DA.F. Fischer, C.E., F.M.; Nemesio B. Mendiola, Ph.D
Nicanor G. Teodoro, Ph.D.
Chemistry
F.T. Adriano, Ph.D.; R.H. Aguilar, Ch.E.; Marcos M. Alicante, Ph.D.Felix V. Espino, Ch.E.; Manuel L. Roxas, Ph.D.;
Patrocinio Valenzuela, Ph.D.
Geology
Leopoldo F. Abad, M.S.; Victoriano Elicaño, B.S.; Antonio D. Alvir, Ph.D
Medicine
Manuel V. Arguelles, M.D.; Arturo Garcia, M.D.; Onofre Garcia, M.D. Hilario Lara, M.D.;Liborio Gomez, M.D.; Walfirdo De Leon, M.D.
Cristobal Manalang, M.D.; Daniel de la Paz, M.D.; Carmelo Reyes, M.D.Jose Rodriguez, M.D.; Agerico B. M. Sison, M.D.
Antonio Sison, M.D.; H.W. Wade, M.D..
Zoology
Leopoldo S. Clemente, Ph.D.; Canuto G. Manuel, D.Sc. Gonzalo Merino, Ph.D.; Heraclio R. Montalban, M.A.
Faustino Q. Otanes, M.S.; Manuel D. Sumulong, M.S., D.V.M.Leopoldo B. Uichanco, D.Sc.; Agustin F. Umali, B.S.
Deogracias V. Villadolid, Ph.D.; Lope M. Yutuc, D.V.M.
Vol. 86 No.1 March 1957
Published by the Institute of Science and Technology(Formerly Bureau of Science)
[Entered as second-class matter at the Post Office at Manila, Phillipines.]
Joaquin Marañon, D.Sc., EditorEduardo Quisumbing, Ph D., Associate Editor
Mauro Garcia, B.S.E., Copy EditorAngel Y. Lira, B.S.C., Junior Copy Editor
Contributing Editors
Anthropology
H.O. Beyer, M.A.;Robert B. Fox, Ph.D.; Ricardo E. Galang, M.A
Botany
Feliciano M. Clara, Ph.D.; E.B. Copeland Ph.D.; T.G. Fajardo, Ph.DA.F. Fischer, C.E., F.M.; Nemesio B. Mendiola, Ph.D
Nicanor G. Teodoro, Ph.D.
Chemistry
F.T. Adriano, Ph.D.; R.H. Aguilar, Ch.E.; Marcos M. Alicante, Ph.D.Felix V. Espino, Ch.E.; Manuel L. Roxas, Ph.D.;
Patrocinio Valenzuela, Ph.D.
Geology
Leopoldo F. Abad, M.S.; Victoriano Elicaño, B.S.; Antonio D. Alvir, Ph.D
Medicine
Manuel V. Arguelles, M.D.; Arturo Garcia, M.D.; Onofre Garcia, M.D. Hilario Lara, M.D.;Liborio Gomez, M.D.; Walfirdo De Leon, M.D.
Cristobal Manalang, M.D.; Daniel de la Paz, M.D.; Carmelo Reyes, M.D.Jose Rodriguez, M.D.; Agerico B. M. Sison, M.D.
Antonio Sison, M.D.; H.W. Wade, M.D..
Zoology
Leopoldo S. Clemente, Ph.D.; Canuto G. Manuel, D.Sc. Gonzalo Merino, Ph.D.; Heraclio R. Montalban, M.A.
Faustino Q. Otanes, M.S.; Manuel D. Sumulong, M.S., D.V.M.Leopoldo B. Uichanco, D.Sc.; Agustin F. Umali, B.S.
Deogracias V. Villadolid, Ph.D.; Lope M. Yutuc, D.V.M.
Vol. 85 No.4 December 1956
Published by the Institute of Science and Technology(Formerly Bureau of Science)
[Entered as second-class matter at the Post Office at Manila, Phillipines.]
Joaquin Marañon, D.Sc., EditorEduardo Quisumbing, Ph D., Associate Editor
Mauro Garcia, B.S.E., Copy EditorAngel Y. Lira, B.S.C., Junior Copy Editor
Contributing Editors
Anthropology
H.O. Beyer, M.A.;Robert B. Fox, Ph.D.; Ricardo E. Galang, M.A
Botany
Feliciano M. Clara, Ph.D.; E.B. Copeland Ph.D.; T.G. Fajardo, Ph.DA.F. Fischer, C.E., F.M.; Nemesio B. Mendiola, Ph.D
Nicanor G. Teodoro, Ph.D.
Chemistry
F.T. Adriano, Ph.D.; R.H. Aguilar, Ch.E.; Marcos M. Alicante, Ph.D.Felix V. Espino, Ch.E.; A.J. Hermano, D.Sc.
Manuel L. Roxas, Ph.D.; Patrocinio Valenzuela, Ph.D.
Geology
Leopoldo F. Abad, M.S.; Victoriano Elicaño, B.S.; Antonio D. Alvir, Ph.D
Medicine
Manuel V. Arguelles, M.D.; Arturo Garcia, M.D.; Onofre Garcia, M.D. Hilario Lara, M.D.;Liborio Gomez, M.D.; Walfirdo De Leon, M.D.
Cristobal Manalang, M.D.; Daniel de la Paz, M.D.; Carmelo Reyes, M.D.Jose Rodriguez, M.D.; Agerico B. M. Sison, M.D.
Antonio Sison, M.D.; H.W. Wade, M.D..
Zoology
Leopoldo S. Clemente, Ph.D.; Canuto G. Manuel, D.Sc. Gonzalo Merino, Ph.D.; Heraclio R. Montalban, M.A.
Faustino Q. Otanes, M.S.; Manuel D. Sumulong, M.S., D.V.M.Leopoldo B. Uichanco, D.Sc.; Agustin F. Umali, B.S.
Deogracias V. Villadolid, Ph.D.; Lope M. Yutuc, D.V.M.
Vol. 85 No.3 September 1956
Published by the Institute of Science and Technology(Formerly Bureau of Science)
[Entered as second-class matter at the Post Office at Manila, Phillipines.]
Joaquin Marañon, D.Sc., EditorEduardo Quisumbing, Ph D., Associate Editor
Mauro Garcia, B.S.E., Copy EditorAngel Y. Lira, B.S.C., Junior Copy Editor
Contributing Editors
Anthropology
H.O. Beyer, M.A.;Robert B. Fox, Ph.D.; Ricardo E. Galang, M.A
Botany
Feliciano M. Clara, Ph.D.; E.B. Copeland Ph.D.; T.G. Fajardo, Ph.D.A.F. Fischer, C.E., F.M.; Nemesio B. Mendiola, Ph.D.
Nicanor G. Teodoro, Ph.D.
Chemistry
F.T. Adriano, Ph.D.; R.H. Aguilar, Ch.E.; Marcos M. Alicante, Ph.D.Felix V. Espino, Ch.E.; A.J. Hermano, D.Sc.
Manuel L. Roxas, Ph.D.; Patrocinio Valenzuela, Ph.D.
Geology
Leopoldo F. Abad, M.S.; Victoriano Elicaño, B.S.; Antonio D. Alvir, Ph.D
Medicine
Manuel V. Arguelles, M.D.; Arturo Garcia, M.D.; Onofre Garcia, M.D. Hilario Lara, M.D.;Liborio Gomez, M.D.; Walfirdo De Leon, M.D.
Cristobal Manalang, M.D.; Daniel de la Paz, M.D.; Carmelo Reyes, M.D.Jose Rodriguez, M.D.; Agerico B. M. Sison, M.D.
Antonio Sison, M.D.; H.W. Wade, M.D..
Zoology
Leopoldo S. Clemente, Ph.D.; Canuto G. Manuel, D.Sc. Gonzalo Merino, Ph.D.; Heraclio R. Montalban, M.A.
Faustino Q. Otanes, M.S.; Manuel D. Sumulong, M.S., D.V.M.Leopoldo B. Uichanco, D.Sc.; Agustin F. Umali, B.S.
Deogracias V. Villadolid, Ph.D.; Lope M. Yutuc, D.V.M.
Vol. 85 No.2 June 1956
Published by the Institute of Science and Technology(Formerly Bureau of Science)
[Entered as second-class matter at the Post Office at Manila, Phillipines.]
Joaquin Marañon, D.Sc., EditorEduardo Quisumbing, Ph D., Associate Editor
Mauro Garcia, B.S.E., Copy EditorAngel Y. Lira, B.S.C., Junior Copy Editor
Contributing Editors
Anthropology
H.O. Beyer, M.A.;Robert B. Fox, Ph.D.; Ricardo E. Galang, M.A
Botany
Feliciano M. Clara, Ph.D.; E.B. Copeland Ph.D.; T.G. Fajardo, Ph.D.A.F. Fischer, C.E., F.M.; Nemesio B. Mendiola, Ph.D.
Nicanor G. Teodoro, Ph.D.
Chemistry
F.T. Adriano, Ph.D.; R.H. Aguilar, Ch.E.; Marcos M. Alicante, Ph.D.Felix V. Espino, Ch.E.; A.J. Hermano, D.Sc.
Manuel L. Roxas, Ph.D.; Patrocinio Valenzuela, Ph.D.
Geology
Leopoldo F. Abad, M.S.; Victoriano Elicaño, B.S.; Antonio D. Alvir, Ph.D
Medicine
Manuel V. Arguelles, M.D.; Arturo Garcia, M.D.; Onofre Garcia, M.D. Hilario Lara, M.D.; Liborio Gomez, M.D.; Walfirdo De Leon, M.D.
Cristobal Manalang, M.D.; Daniel de la Paz, M.D.; Carmelo Reyes, M.D.Jose Rodriguez, M.D.; Agerico B. M. Sison, M.D.
Antonio Sison, M.D.; H.W. Wade, M.D..
Zoology
Leopoldo S. Clemente, Ph.D.; Canuto G. Manuel, D.Sc. Gonzalo Merino, Ph.D.; Heraclio R. Montalban, M.A.
Faustino Q. Otanes, M.S.; Manuel D. Sumulong, M.S., D.V.M.Leopoldo B. Uichanco, D.Sc.; Agustin F. Umali, B.S.
Deogracias V. Villadolid, Ph.D.; Lope M. Yutuc, D.V.M.
Vol. 85 No.1 March 1956
Published by the Institute of Science and Technology(Formerly Bureau of Science)
[Entered as second-class matter at the Post Office at Manila, Phillipines.]
Joaquin Marañon, D.Sc., EditorEduardo Quisumbing, Ph D., Associate Editor
Mauro Garcia, B.S.E., Copy EditorAngel Y. Lira, B.S.C., Junior Copy Editor
Contributing Editors
Anthropology
H.O. Beyer, M.A.;Robert B. Fox, Ph.D.; Ricardo E. Galang, M.A
Botany
Feliciano M. Clara, Ph.D.; E.B. Copeland Ph.D.; T.G. Fajardo, Ph.D.A.F. Fischer, C.E., F.M.; Nemesio B. Mendiola, Ph.D.
Nicanor G. Teodoro, Ph.D.
Chemistry
F.T. Adriano, Ph.D.; R.H. Aguilar, Ch.E.; Marcos M. Alicante, Ph.D.Felix V. Espino, Ch.E.; A.J. Hermano, D.Sc.
Manuel L. Roxas, Ph.D.; Patrocinio Valenzuela, Ph.D.
Geology
Leopoldo F. Abad, M.S.; Victoriano Elicaño, B.S.; Antonio D. Alvir, Ph.D
Medicine
Manuel V. Arguelles, M.D.; Arturo Garcia, M.D.; Onofre Garcia, M.D. Hilario Lara, M.D.; Liborio Gomez, M.D.; Walfirdo De Leon, M.D.
Cristobal Manalang, M.D.; Daniel de la Paz, M.D.; Carmelo Reyes, M.D.Jose Rodriguez, M.D.; Agerico B. M. Sison, M.D.
Antonio Sison, M.D.; H.W. Wade, M.D..
Zoology
Leopoldo S. Clemente, Ph.D.; Canuto G. Manuel, D.Sc. Gonzalo Merino, Ph.D.; Heraclio R. Montalban, M.A.
Faustino Q. Otanes, M.S.; Manuel D. Sumulong, M.S., D.V.M.Leopoldo B. Uichanco, D.Sc.; Agustin F. Umali, B.S.
Deogracias V. Villadolid, Ph.D.; Lope M. Yutuc, D.V.M.
Vol. 84 January to December 1955
Published by the Institute of Science and Technology(Formerly Bureau of Science)
[Entered as second-class matter at the Post Office at Manila, Phillipines.]
Joaquin Marañon, D.Sc., EditorEduardo Quisumbing, Ph D., Associate Editor
Mauro Garcia, B.S.E., Copy EditorAngel Y. Lira, B.S.C., Junior Copy Editor
Contributing Editors
Chemistry
Manuel L. Roxas, Ph. D.; F.T. Adriano, Ph.D.; R.H. Aguilar, Ch.E.Patrocinio Valenzuela, Ph.D.; Marcos M. Alicante, Ph.D.
A.J. Hermano, D.Sc.; Felix V. Espino, Ch.E.
Geology
Victoriano Elicaño, B.S.; Antonio D. Alvir, Ph.D
Medicine
Daniel De La Paz, M.D.; Arturo Garcia, M.D.; Onofre Garcia, M.D.Cristobal Manalang, M.D.; .W. Wade, M.D.; Walfrido de Leon, M.D.
Antonio Sison, M.D.; Agerico B.M. Sison, M.D.; Liborio Gomez, M.D. Ph.D.H.Lara, M.D. Jose Rodriguez, M.D.; Carmelo Reyes, M.D.
Manuel V. Arguelles, M.D..
Botany
Elmer D. Merrill, D.Sc.; E.B. Copeland, Ph.D.; A.F. Fischer, C.E., M.F.T.G. Fajardo, Ph.D.; Nicanor G. Teodoro, Ph.D.;
Feliciano M. Clara, Ph.D., Nemesio B. Mendiola, Ph.D.
Zoology
Leopoldo B. Uichangco, D.Sc.; Deogracias V. Villadolid, Ph.D.Heraclio R. Montalban, M.A.; Gonzalo Merino, Ph.D.;
Canuto G. Manuel, D.Sc. ;Manuel D. Sumulong, M.S., D.V.M.; Lope M. Yutuc, D.V.M.; Faustino Q. Otanes, M.S.;
Leopoldo S. Clemente, Ph.D.
Anthropology
H.O. Beyer, M.A.; Ricardo E. Galang, M.A
Vol. 84. No.4 December 1955
Published by the Institute of Science and Technology(Formerly Bureau of Science)
Joaquin Marañon, D.Sc., EditorEduardo Quisumbing, Ph D., Associate Editor
Mauro Garcia, B.S.E., Copy EditorAngel Y. Lira, B.S.C., Junior Copy Editor
Contributing Editors
Chemistry
Manuel L. Roxas, Ph. D.; F.T. Adriano, Ph.D.; R.H. Aguilar, Ch.E.Patrocinio Valenzuela, Ph.D.; Marcos M. Alicante, Ph.D.
A.J. Hermano, D.Sc.; Felix V. Espino, Ch.E.
Geology
Victoriano Elicaño, B.S.; Antonio D. Alvir, Ph.D
Medicine
Daniel De La Paz, M.D.; Arturo Garcia, M.D.; Onofre Garcia, M.D.Cristobal Manalang, M.D.; .W. Wade, M.D.; Walfrido de Leon, M.D.
Antonio Sison, M.D.; Agerico B.M. Sison, M.D.; Liborio Gomez, M.D. Ph.D.H.Lara, M.D. Jose Rodriguez, M.D.; Carmelo Reyes, M.D.
Manuel V. Arguelles, M.D..
Botany
Elmer D. Merrill, D.Sc.; E.B. Copeland, Ph.D.; A.F. Fischer, C.E., M.F.T.G. Fajardo, Ph.D.; Nicanor G. Teodoro, Ph.D.;
Feliciano M. Clara, Ph.D., Nemesio B. Mendiola, Ph.D.
Zoology
Leopoldo B. Uichangco, D.Sc.; Deogracias V. Villadolid, Ph.D.Heraclio R. Montalban, M.A.; Gonzalo Merino, Ph.D.;
Canuto G. Manuel, D.Sc. ;Manuel D. Sumulong, M.S., D.V.M.; Lope M. Yutuc, D.V.M.; Faustino Q. Otanes, M.S.;
Leopoldo S. Clemente, Ph.D.
Anthropology
H.O. Beyer, M.A.; Ricardo E. Galang, M.A
Vol. 83 January to December 1954
Published by the Institute of Science and Technology(Formerly Bureau of Science)
Joaquin Marañon, D.Sc., EditorEduardo Quisumbing, Ph D., Associate Editor
Mauro Garcia, B.S.E., Copy EditorAngel Y. Lira, B.S.C., Junior Copy Editor
Contributing Editors
Chemistry
Manuel L. Roxas, Ph. D.; F.T. Adriano, Ph.D.; R.H. Aguilar, Ch.E.Patrocinio Valenzuela, Ph.D.; Marcos M. Alicante, Ph.D.
A.J. Hermano, D.Sc.; Felix V. Espino, Ch.E.
Geology
Victoriano Elicaño, B.S.; Antonio D. Alvir, Ph.D
Experimental Medicine
Daniel De La Paz, M.D.; Arturo Garcia, M.D.; Onofre Garcia, M.D.Cristobal Manalang, M.D.; .W. Wade, M.D.;
Walfrido de Leon, M.D.
Clinical Medicine
Antonio Sison, M.D.; Agerico B. M. Sison, M.D. Liborio Gomez, M.D., Ph.D.; H. Lara, M.D.Jose Rodriguez, M.D.; Carmelo Reyes, M.D.
Botany
Elmer D. Merrill, D.Sc.; E.B. Copeland, Ph.D.; A.F. Fischer, C.E., M.F.T.G. Fajardo, Ph.D.; Nicanor G. Teodoro, Ph.D.;
Feliciano M. Clara, Ph.D., Nemesio B. Mendiola, Ph.D.
Zoology
Leopoldo B. Uichangco, D.Sc.; Deogracias V. Villadolid, Ph.D.Heraclio R. Montalban, M.A.; Gonzalo Merino, Ph.D.;
Canuto G. Manuel, D.Sc. ;Manuel D. Sumulong, M.S., D.V.M.; Lope M. Yutuc, D.V.M.; Faustino Q. Otanes, M.S.;
Leopoldo S. Clemente, Ph.D.
Anthropology
H.O. Beyer, M.A.; Ricardo E. Galang, M.A
Vol. 82. January to December 1953
Published by the Institute of Science and Technology(Formerly Bureau of Science)
Joaquin Marañon, D.Sc., EditorEduardo Quisumbing, Ph D., Associate Editor
Contributing Editors
Chemistry
Manuel L. Roxas, Ph. D.; F.T. Adriano, Ph.D.; R.H. Aguilar, Ch.E.Patrocinio Valenzuela, Ph.D.; Marcos M. Alicante, Ph.D.
A.J. Hermano, D.Sc.; Felix V. Espino, Ch.E.
Geology
V. Elicaño, B.S.; Antonio D. Alvir, Ph.D.; Jose Feliciano, Ph.D.
Experimental Medicine
Daniel De La Paz, M.D.; Arturo Garcia, M.D.; Onofre Garcia, M.D.Cristobal Manalang, M.D.; .W. Wade, M.D.;
Walfrido de Leon, M.D.
Clinical Medicine
Antonio Sison, M.D.; Agerico B. M. Sison, M.D. Liborio Gomez, M.D., Ph.D.; H. Lara, M.D.Jose Rodriguez, M.D.; Carmelo Reyes, M.D.
Botany
Elmer D. Merrill, D.Sc.; E.B. Copeland, Ph.D.; A.F. Fischer, C.E., M.F.T.G. Fajardo, Ph.D.; Nicanor G. Teodoro, Ph.D.;
Feliciano M. Clara, Ph.D., Nemesio B. Mendiola, Ph.D.
Zoology
Leopoldo B. Uichangco, D.Sc.; Deogracias V. Villadolid, Ph.D.Heraclio R. Montalban, M.A.; Gonzalo Merino, Ph.D.;
Canuto G. Manuel, D.Sc. ;Manuel D. Sumulong, M.S., D.V.M.; Lope M. Yutuc, D.V.M.; Faustino Q. Otanes, M.S.;
Leopoldo S. Clemente, Ph.D.
Anthropology
H.O. Beyer, M.A.; Ricardo E. Galang, M.A
Vol. 81. No.1 March 1952
Published by the Institute of Science and Technology(Formerly Bureau of Science)
Joaquin Marañon, D.Sc., EditorEduardo Quisumbing, Ph D., Associate Editor
Contributing Editors
Chemistry
Manuel L. Roxas, Ph. D.; F.T. Adriano, Ph.D.; R.H. Aguilar, Ch.E.Patrocinio Valenzuela, Ph.D.; Marcos M. Alicante, Ph.D.
A.J. Hermano, D.Sc.; Felix V. Espino, Ch.E.
Geology
V. Elicaño, B.S.; Antonio D. Alvir, Ph.D.; Jose Feliciano, Ph.D.
Experimental Medicine
Daniel De La Paz, M.D.; Arturo Garcia, M.D.; Onofre Garcia, M.D.Cristobal Manalang, M.D.; .W. Wade, M.D.;
Walfrido de Leon, M.D.
Clinical Medicine
Antonio Sison, M.D.; Agerico B. M. Sison, M.D. Liborio Gomez, M.D., Ph.D.; H. Lara, M.D.Jose Rodriguez, M.D.; Carmelo Reyes, M.D.
Botany
Elmer D. Merrill, D.Sc.; E.B. Copeland, Ph.D.; A.F. Fischer, C.E., M.F.T.G. Fajardo, Ph.D.; Nicanor G. Teodoro, Ph.D.;
Feliciano M. Clara, Ph.D., Nemesio B. Mendiola, Ph.D.
Zoology
Leopoldo B. Uichangco, D.Sc.; Deogracias V. Villadolid, Ph.D.Heraclio R. Montalban, M.A.; Gonzalo Merino, Ph.D.;
Canuto G. Manuel, D.Sc. ;Manuel D. Sumulong, M.S., D.V.M.; Lope M. Yutuc, D.V.M.; Faustino Q. Otanes, M.S.;
Leopoldo S. Clemente, Ph.D.
Anthropology
H.O. Beyer, M.A.; Ricardo E. Galang, M.A
Vol. 81. No.1 March 1952
Published by the Institute of Science and Technology(Formerly Bureau of Science)
Joaquin Marañon, D.Sc., EditorEduardo Quisumbing, Ph D., Associate Editor
Contributing Editors
Chemistry
Manuel L. Roxas, Ph. D.; F.T. Adriano, Ph.D.; R.H. Aguilar, Ch.E.Patrocinio Valenzuela, Ph.D.; Marcos M. Alicante, Ph.D.
A.J. Hermano, D.Sc.; Felix V. Espino, Ch.E.
Geology
V. Elicaño, B.S.; Antonio D. Alvir, Ph.D.; Jose Feliciano, Ph.D.
Experimental Medicine
Daniel De La Paz, M.D.; Arturo Garcia, M.D.; Onofre Garcia, M.D.Cristobal Manalang, M.D.; .W. Wade, M.D.;
Walfrido de Leon, M.D.
Clinical Medicine
Antonio Sison, M.D.; Agerico B. M. Sison, M.D. Liborio Gomez, M.D., Ph.D.; H. Lara, M.D.Jose Rodriguez, M.D.; Carmelo Reyes, M.D.
Botany
Elmer D. Merrill, D.Sc.; E.B. Copeland, Ph.D.; A.F. Fischer, C.E., M.F.T.G. Fajardo, Ph.D.; Nicanor G. Teodoro, Ph.D.;
Feliciano M. Clara, Ph.D., Nemesio B. Mendiola, Ph.D.
Zoology
Leopoldo B. Uichangco, D.Sc.; Deogracias V. Villadolid, Ph.D.Heraclio R. Montalban, M.A.; Gonzalo Merino, Ph.D.;
Canuto G. Manuel, D.Sc. ;Manuel D. Sumulong, M.S., D.V.M.; Lope M. Yutuc, D.V.M.; Faustino Q. Otanes, M.S.;
Leopoldo S. Clemente, Ph.D.
Anthropology
H.O. Beyer, M.A.; Ricardo E. Galang, M.A
Vol. 80 No.3 September 1951
Published by the Institute of Science and Technology(Formerly Bureau of Science)
Joaquin Marañon, D.Sc., EditorEduardo Quisumbing, Ph D., Associate Editor
Contributing Editors
Chemistry
Manuel L. Roxas, Ph. D.; F.T. Adriano, Ph.D.; R.H. Aguilar, Ch.E..; Patrocinio Valenzuela, Ph.D.; Marcos M. Alicante, Ph.D.
A.J. Hermano, D.Sc.; Felix V. Espino, Ch.E.
Geology
V. Elicaño, B.S.; Antonio D. Alvir, Ph.D.; Jose Feliciano, Ph.D.
Experimental Medicine
Daniel De La Paz, M.D.; Arturo Garcia, M.D.; Onofre Garcia, M.D.Cristobal Manalang, M.D.; .W. Wade, M.D.;
Walfrido de Leon, M.D.
Clinical Medicine
Antonio Sison, M.D.; Agerico B. M. Sison, M.D. Liborio Gomez, M.D., Ph.D.; H. Lara, M.D.Jose Rodriguez, M.D.; Carmelo Reyes, M.D.
Botany
Elmer D. Merrill, D.Sc.; E.B. Copeland, Ph.D.; A.F. Fischer, C.E., M.F.T.G. Fajardo, Ph.D.; Nicanor G. Teodoro, Ph.D.;
Feliciano M. Clara, Ph.D., Nemesio B. Mendiola, Ph.D.
Zoology
Leopoldo B. Uichangco, D.Sc.; Deogracias V. Villadolid, Ph.D.Heraclio R. Montalban, M.A.; Gonzalo Merino, Ph.D.;
Canuto G. Manuel, D.Sc. ;Manuel D. Sumulong, M.S., D.V.M.; Lope M. Yutuc, D.V.M.; Faustino Q. Otanes, M.S.;
Leopoldo S. Clemente, Ph.D.
Anthropology
H.O. Beyer, M.A.; Ricardo E. Galang, M.A
Vol. 79 No.4 December 1950
Published by the Institute of Science (Formerly Bureau of Science)
A.S Arguelles, D.Sc., EditorEduardo Quisumbing, Ph D., Associate Editor
Contributing Editors
Chemistry
Manuel L. Roxas, Ph. D.; F.T. Adriano, Ph.D.Joaquin Marañon, D.Sc.; R.H. Aguilar, Ch. E.
Patrocinio Valenzuela, Ph.D.; Marcos M. Alicante, Ph.D.A.J. Hermano, D.Sc.; Felix V. Espino, Ch.E.
Geology
V. Elicaño, B.S.; Antonio D. Alvir, Ph.D.; Jose Feliciano, Ph.D.
Experimental Medicine
Daniel De La Paz, M.D.; Arturo Garcia, M.D.; Onofre Garcia, M.D.Cristobal Manalang, M.D.; Isabelo Conception, M.D.
H.W. Wade, M.D.; Walfrido de Leon, M.D.
Clinical Medicine
Antonio Sison, M.D.; Liborio Gomez, M.D., Ph.D. H. Lara, M.D.Jose Rodriguez, M.D.; Carmelo Reyes, M.D.
Botany
Elmer D. Merrill, D.Sc.; E.B. Copeland, Ph.D.; A.F. Fischer, C.E., M.F.T.G. Fajardo, Ph.D.; Rafael B. Espino, Ph.D.
Nicanor G. Teodoro, Ph.D.; Feliciano M. Clara, Ph.D. Nemesio B. Mendiola, Ph.D.
Zoology
Leopoldo B. Uichangco, D.Sc.; Deogracias V. Villadolid, Ph.D.Heraclio R. Montalban, M.A.; Gonzalo Merino, Ph.D.;
Canuto G. Manuel, D.Sc. ;Manuel D. Sumulong, M.S., D.V.M.; Lope M. Yutuc, D.V.M.; Faustino Q. Otanes, M.S.;
Leopoldo S. Clemente, Ph.D.
Anthropology
H.O. Beyer, M.A.; Ricardo E. Galang, M.A
Vol. 78 No.2 September 1949
Published by the Institute of Science (Formerly Bureau of Science)
A.S Arguelles, D.Sc., EditorEduardo Quisumbing, Ph D., Associate Editor
Contributing Editors
Chemistry
Manuel L. Roxas, Ph. D.; F.T. Adriano, Ph.D.Joaquin Marañon, D.Sc.; R.H. Aguilar, Ch. E.
Patrocinio Valenzuela, Ph.D.; Marcos M. Alicante, Ph.D.A.J. Hermano, D.Sc.; Felix V. Espino, Ch.E.
Geology
V. Elicaño, B.S.; Antonio D. Alvir, Ph.D.; Jose Feliciano, Ph.D.
Experimental Medicine
Daniel De La Paz, M.D.; Arturo Garcia, M.D.; Onofre Garcia, M.D.Cristobal Manalang, M.D.; Isabelo Conception, M.D.
H.W. Wade, M.D.; Walfrido de Leon, M.D.
Clinical Medicine
Antonio Sison, M.D.; Liborio Gomez, M.D., Ph.D. H. Lara, M.D.Jose Rodriguez, M.D.; Carmelo Reyes, M.D.
Botany
Elmer D. Merrill, D.Sc.; E.B. Copeland, Ph.D.; A.F. Fischer, C.E., M.F.T.G. Fajardo, Ph.D.; Rafael B. Espino, Ph.D.
Nicanor G. Teodoro, Ph.D.; Feliciano M. Clara, Ph.D. Nemesio B. Mendiola, Ph.D.
Zoology
Leopoldo B. Uichangco, D.Sc.; Deogracias V. Villadolid, Ph.D.Heraclio R. Montalban, M.A.; Gonzalo Merino, Ph.D.;
Canuto G. Manuel, D.Sc. ;Manuel D. Sumulong, M.S., D.V.M.; Lope M. Yutuc, D.V.M.; Faustino Q. Otanes, M.S.;
Leopoldo S. Clemente, Ph.D.
Anthropology
H.O. Beyer, M.A.; Ricardo E. Galang, M.A
Vol. 78 No.2 June 1949
Published by the Institute of Science (Formerly Bureau of Science)
A.S Arguelles, D.Sc., EditorEduardo Quisumbing, Ph D., Associate Editor
Contributing Editors
Chemistry
Manuel L. Roxas, Ph. D.; F.T. Adriano, Ph.D.Joaquin Marañon, D.Sc.; R.H. Aguilar, Ch. E.
Patrocinio Valenzuela, Ph.D.; Marcos M. Alicante, Ph.D.A.J. Hermano, D.Sc.; Felix V. Espino, Ch.E.
Geology
V. Elicaño, B.S.; Antonio D. Alvir, Ph.D.; Jose Feliciano, Ph.D.
Experimental Medicine
Daniel De La Paz, M.D.; Arturo Garcia, M.D.; Onofre Garcia, M.D.Cristobal Manalang, M.D.; Isabelo Conception, M.D.
H.W. Wade, M.D.; Walfrido de Leon, M.D.
Clinical Medicine
Antonio Sison, M.D.; Liborio Gomez, M.D., Ph.D. H. Lara, M.D.Jose Rodriguez, M.D.; Carmelo Reyes, M.D.
Botany
Elmer D. Merrill, D.Sc.; E.B. Copeland, Ph.D.; A.F. Fischer, C.E., M.F.T.G. Fajardo, Ph.D.; Rafael B. Espino, Ph.D.
Nicanor G. Teodoro, Ph.D.; Feliciano M. Clara, Ph.D. Nemesio B. Mendiola, Ph.D.
Zoology
Leopoldo B. Uichangco, D.Sc.; Deogracias V. Villadolid, Ph.D.Marcos A. Tubangui, M.S., D.V.M.; Heraclio R. Montalban, M.A.
Gonzalo Merino, Ph.D.; Canuto G. Manuel, D.Sc.Manuel D. Sumulong, M.S., D.V.M.; Lope M. Yutuc, D.V.M.
Faustino Q. Otanes, M.S.; Leopoldo S. Clemente, Ph.D.
Anthropology
H.O. Beyer, M.A.; Ricardo E. Galang, M.A
Vol. 78 No.1 March 1949
Published by the Institute of Science (Formerly Bureau of Science)
A.S Arguelles, D.Sc., EditorEduardo Quisumbing, Ph D., Associate Editor
Contributing Editors
Chemistry
Manuel L. Roxas, Ph. D.; F.T. Adriano, Ph.D.Joaquin Marañon, D.Sc.; R.H. Aguilar, Ch. E.
Patrocinio Valenzuela, Ph.D.; Marcos M. Alicante, Ph.D.A.J. Hermano, D.Sc.; Felix V. Espino, Ch.E.
Geology
V. Elicaño, B.S.; Antonio D. Alvir, Ph.D.; Jose Feliciano, Ph.D.
Experimental Medicine
Daniel De La Paz, M.D.; Arturo Garcia, M.D.; Onofre Garcia, M.D.Cristobal Manalang, M.D.; Isabelo Conception, M.D.
H.W. Wade, M.D.; Walfrido de Leon, M.D.
Clinical Medicine
Antonio Sison, M.D.; Liborio Gomez, M.D., Ph.D. H. Lara, M.D.Jose Rodriguez, M.D.; Carmelo Reyes, M.D.
Botany
Elmer D. Merrill, D.Sc.; E.B. Copeland, Ph.D.; A.F. Fischer, C.E., M.F.T.G. Fajardo, Ph.D.; Rafael B. Espino, Ph.D.
Nicanor G. Teodoro, Ph.D.; Feliciano M. Clara, Ph.D.J.K. Santos, Ph.D.; Nemesio B. Mendiola, Ph.D.
Zoology
Leopoldo B. Uichangco, D.Sc.; Deogracias V. Villadolid, Ph.D.Marcos A. Tubangui, M.S., D.V.M.; Heraclio R. Montalban, M.A.
Gonzalo Merino, Ph.D.; Canuto G. Manuel, D.Sc.Manuel D. Sumulong, M.S., D.V.M.; Lope M. Yutuc, D.V.M.
Faustino Q. Otanes, M.S.; Leopoldo S. Clemente, Ph.D.
Anthropology
H.O. Beyer, M.A.; Ricardo E. Galang, M.A
Vol. 87 No. 4 December 1958
National Science Development Board
Paulino J. Garcia, M.D., ChairmanCasimiro del Rosario, Ph.D.
Vice Chairman and Executive Director
Members of the Board
Teodoro Evangelista, LL.B., LL.D. Florencio A. Medina, M.S.Isidro Macaspac, M.A. Jose J. Mirasol, Ph.D.Oscar B. Mapua, B.S.C.E. Crisostomo Ortigas, M.S.M.EJoaquin Marañon, D.Sc. Antonio G. Sison, M.D.Gregorio Y. Zara, D.Sc.
The Philippine Journal of Science
Published quarterly by the National Institute of Science and Technology(Formely Bureau of Science), P.O. Box 774, Manila, Philippines
Joaquin Marañon, D.Sc.Editor
Eduardo Quisumbing, Ph.D. Canuto G. Manuel, D.Sc. Associate Editor Associate Editor
Mauro Garcia, B.S.E.Copy Editor
Contributing Editors
Agriculture Nuclear Science MedicineAnacleto B. Coronel, D.V.M. Pedro G. Afable, B.S.C.E Walfrido de Leon, M.D., D.T.MEugenio E. Cruz, M.S. Julian Banzon, Ph.D. Virgilio Ramos, M.D.Nemesio B. Mendiola, Ph.D. Paulo C. Campos, M.D. Rogelio Relova, M.D.Leopoldo B. Uichanco, D.Sc. Ignacio S. Salcedo, Ph.D. Agerico B.M. Sison, M.D.
Anthropology Food and Nutrition ZoologyH. Otley Beyer, M.A. Bernardo Acena, Ph.D. Leopoldo S. Clemente, Ph.D.Robert B. Fox, Ph.D. Conrado R. Pascual, M.D. Heraclio R. Montalban, M.A.E. Arsenio Manuel M.A. Juan S. Salcedo, Jr., M.D. Deogracias V. Villadodid, Ph.D.Marcelino N. Maceda, Ph.D. Florencio A. Soliven, M.S. Lope M. Yutuc, D.V.M.
Botany GeologyJose M. Capinpin, Ph.D. Antonio D. Alvir, Ph.D.Tanquilino G. Fajardo, Ph.D. Cesar B. Ibañez, M.S.Macario A. Palo, B.S.A. Elpidio Vera, M.S.Gregorio Velasquez, Ph.D. Mateo T. Tupas, Ph.D.
Chemistry Industrial TechnologyDionisio Birosel, Ph.D. Manuel I. FelizaB.S.M.E.Aurelio O. Cruz, Phar. Chem. Gil O. Opiana, B.S.A., Chem. Eng.Marcos M. Alicante, Ph.D. Mariano P. Ramiro, Ph.D.Patrocinio Valenzuela, Ph.D. Anastacio L. Teodoro, Ph.D.
Vol. 87 No. 3 September 1958
National Science Development Board
Paulino J. Garcia, M.D., ChairmanCasimiro del Rosario, Ph.D.
Vice Chairman and Executive Director
Members of the Board
Teodoro Evangelista, LL.B., LL.D. Florencio A. Medina, M.S.Isidro Macaspac, M.A. Jose J. Mirasol, Ph.D.Oscar B. Mapua, B.S.C.E. Crisostomo Ortigas, M.S.M.EJoaquin Marañon, D.Sc. Antonio G. Sison, M.D.Gregorio Y. Zara, D.Sc.
The Philippine Journal of Science
Published quarterly by the National Institute of Science and Technology(Formely Bureau of Science), P.O. Box 774, Manila, Philippines
Joaquin Marañon, D.Sc.Editor
Eduardo Quisumbing, Ph.D. Canuto G. Manuel, D.Sc. Associate Editor Associate Editor
Mauro Garcia, B.S.E.Copy Editor
Contributing Editors
Agriculture Nuclear Science MedicineAnacleto B. Coronel, D.V.M. Pedro G. Afable, B.S.C.E Walfrido de Leon, M.D., D.T.MEugenio E. Cruz, M.S. Julian Banzon, Ph.D. Virgilio Ramos, M.D.Nemesio B. Mendiola, Ph.D. Paulo C. Campos, M.D. Rogelio Relova, M.D.Leopoldo B. Uichanco, D.Sc. Ignacio S. Salcedo, Ph.D. Agerico B.M. Sison, M.D.
Anthropology Food and Nutrition ZoologyH. Otley Beyer, M.A. Bernardo Acena, Ph.D. Leopoldo S. Clemente, Ph.D.Robert B. Fox, Ph.D. Conrado R. Pascual, M.D. Heraclio R. Montalban, M.A.E. Arsenio Manuel M.A. Juan S. Salcedo, Jr., M.D. Deogracias V. Villadodid, Ph.D.Marcelino N. Maceda, Ph.D. Florencio A. Soliven, M.S. Lope M. Yutuc, D.V.M.
Botany GeologyJose M. Capinpin, Ph.D. Antonio D. Alvir, Ph.D.Tanquilino G. Fajardo, Ph.D. Cesar B. Ibañez, M.S.Macario A. Palo, B.S.A. Elpidio Vera, M.S.Gregorio Velasquez, Ph.D. Mateo T. Tupas, Ph.D.
Chemistry Industrial TechnologyDionisio Birosel, Ph.D. Manuel I. FelizaB.S.M.E.Aurelio O. Cruz, Phar. Chem. Gil O. Opiana, B.S.A., Chem. Eng.Marcos M. Alicante, Ph.D. Mariano P. Ramiro, Ph.D.Patrocinio Valenzuela, Ph.D. Anastacio L. Teodoro, Ph.D.
Vol. 87 No.1 March 1958
Published by the Institute of Science and Technology(Formerly Bureau of Science)
[Entered as second-class matter at the Post Office at Manila, Phillipines.]
Joaquin Marañon, D.Sc., EditorEduardo Quisumbing, Ph D., Associate Editor (on leave)
Mauro Garcia, B.S.E., Copy EditorAngel Y. Lira, B.S.C., Junior Copy Editor
Contributing Editors
Anthropology
H.O. Beyer, M.A.;Robert B. Fox, Ph.D.; Ricardo E. Galang, M.A
Botany
Feliciano M. Clara, Ph.D.; E.B. Copeland Ph.D.; T.G. Fajardo, Ph.DA.F. Fischer, C.E., F.M.; Nemesio B. Mendiola, Ph.D
Nicanor G. Teodoro, Ph.D.
Chemistry
F.T. Adriano, Ph.D.; R.H. Aguilar, Ch.E.; Marcos M. Alicante, Ph.D.Felix V. Espino, Ch.E.; Manuel L. Roxas, Ph.D.;
Patrocinio Valenzuela, Ph.D.
Geology
Leopoldo F. Abad, M.S.; Victoriano Elicaño, B.S.; Antonio D. Alvir, Ph.D
Medicine
Manuel V. Arguelles, M.D.; Arturo Garcia, M.D.; Onofre Garcia, M.D. Hilario Lara, M.D.; Walfirdo De Leon, M.D.
Cristobal Manalang, M.D.; Daniel de la Paz, M.D.; Carmelo Reyes, M.D.Jose Rodriguez, M.D.; Agerico B. M. Sison, M.D.
Antonio Sison, M.D.; H.W. Wade, M.D..
Zoology
Leopoldo S. Clemente, Ph.D.; Canuto G. Manuel, D.Sc. Gonzalo Merino, Ph.D.; Heraclio R. Montalban, M.A.
Faustino Q. Otanes, M.S.; Manuel D. Sumulong, M.S., D.V.M.Leopoldo B. Uichanco, D.Sc.; Agustin F. Umali, B.S.
Deogracias V. Villadolid, Ph.D.; Lope M. Yutuc, D.V.M.
Vol. 86 No.4 December 1957
Published by the Institute of Science and Technology(Formerly Bureau of Science)
[Entered as second-class matter at the Post Office at Manila, Phillipines.]
Joaquin Marañon, D.Sc., EditorEduardo Quisumbing, Ph D., Associate Editor
Mauro Garcia, B.S.E., Copy EditorAngel Y. Lira, B.S.C., Junior Copy Editor
Contributing Editors
Anthropology
H.O. Beyer, M.A.;Robert B. Fox, Ph.D.; Ricardo E. Galang, M.A
Botany
Feliciano M. Clara, Ph.D.; E.B. Copeland Ph.D.; T.G. Fajardo, Ph.DA.F. Fischer, C.E., F.M.; Nemesio B. Mendiola, Ph.D
Nicanor G. Teodoro, Ph.D.
Chemistry
F.T. Adriano, Ph.D.; R.H. Aguilar, Ch.E.; Marcos M. Alicante, Ph.D.Felix V. Espino, Ch.E.; Manuel L. Roxas, Ph.D.;
Patrocinio Valenzuela, Ph.D.
Geology
Leopoldo F. Abad, M.S.; Victoriano Elicaño, B.S.; Antonio D. Alvir, Ph.D
Medicine
Manuel V. Arguelles, M.D.; Arturo Garcia, M.D.; Onofre Garcia, M.D. Hilario Lara, M.D.;Liborio Gomez, M.D.; Walfirdo De Leon, M.D.
Cristobal Manalang, M.D.; Daniel de la Paz, M.D.; Carmelo Reyes, M.D.Jose Rodriguez, M.D.; Agerico B. M. Sison, M.D.
Antonio Sison, M.D.; H.W. Wade, M.D..
Zoology
Leopoldo S. Clemente, Ph.D.; Canuto G. Manuel, D.Sc. Gonzalo Merino, Ph.D.; Heraclio R. Montalban, M.A.
Faustino Q. Otanes, M.S.; Manuel D. Sumulong, M.S., D.V.M.Leopoldo B. Uichanco, D.Sc.; Agustin F. Umali, B.S.
Deogracias V. Villadolid, Ph.D.; Lope M. Yutuc, D.V.M.
Vol. 86 No.3 September 1957
Published by the Institute of Science and Technology(Formerly Bureau of Science)
[Entered as second-class matter at the Post Office at Manila, Phillipines.]
Joaquin Marañon, D.Sc., EditorEduardo Quisumbing, Ph D., Associate Editor
Mauro Garcia, B.S.E., Copy EditorAngel Y. Lira, B.S.C., Junior Copy Editor
Contributing Editors
Anthropology
H.O. Beyer, M.A.;Robert B. Fox, Ph.D.; Ricardo E. Galang, M.A
Botany
Feliciano M. Clara, Ph.D.; E.B. Copeland Ph.D.; T.G. Fajardo, Ph.DA.F. Fischer, C.E., F.M.; Nemesio B. Mendiola, Ph.D
Nicanor G. Teodoro, Ph.D.
Chemistry
F.T. Adriano, Ph.D.; R.H. Aguilar, Ch.E.; Marcos M. Alicante, Ph.D.Felix V. Espino, Ch.E.; Manuel L. Roxas, Ph.D.;
Patrocinio Valenzuela, Ph.D.
Geology
Leopoldo F. Abad, M.S.; Victoriano Elicaño, B.S.; Antonio D. Alvir, Ph.D
Medicine
Manuel V. Arguelles, M.D.; Arturo Garcia, M.D.; Onofre Garcia, M.D. Hilario Lara, M.D.;Liborio Gomez, M.D.; Walfirdo De Leon, M.D.
Cristobal Manalang, M.D.; Daniel de la Paz, M.D.; Carmelo Reyes, M.D.Jose Rodriguez, M.D.; Agerico B. M. Sison, M.D.
Antonio Sison, M.D.; H.W. Wade, M.D..
Zoology
Leopoldo S. Clemente, Ph.D.; Canuto G. Manuel, D.Sc. Gonzalo Merino, Ph.D.; Heraclio R. Montalban, M.A.
Faustino Q. Otanes, M.S.; Manuel D. Sumulong, M.S., D.V.M.Leopoldo B. Uichanco, D.Sc.; Agustin F. Umali, B.S.
Deogracias V. Villadolid, Ph.D.; Lope M. Yutuc, D.V.M.
Vol. 86 No.2 June 1957
Published by the Institute of Science and Technology(Formerly Bureau of Science)
[Entered as second-class matter at the Post Office at Manila, Phillipines.]
Joaquin Marañon, D.Sc., EditorEduardo Quisumbing, Ph D., Associate Editor
Mauro Garcia, B.S.E., Copy EditorAngel Y. Lira, B.S.C., Junior Copy Editor
Contributing Editors
Anthropology
H.O. Beyer, M.A.;Robert B. Fox, Ph.D.; Ricardo E. Galang, M.A
Botany
Feliciano M. Clara, Ph.D.; E.B. Copeland Ph.D.; T.G. Fajardo, Ph.DA.F. Fischer, C.E., F.M.; Nemesio B. Mendiola, Ph.D
Nicanor G. Teodoro, Ph.D.
Chemistry
F.T. Adriano, Ph.D.; R.H. Aguilar, Ch.E.; Marcos M. Alicante, Ph.D.Felix V. Espino, Ch.E.; Manuel L. Roxas, Ph.D.;
Patrocinio Valenzuela, Ph.D.
Geology
Leopoldo F. Abad, M.S.; Victoriano Elicaño, B.S.; Antonio D. Alvir, Ph.D
Medicine
Manuel V. Arguelles, M.D.; Arturo Garcia, M.D.; Onofre Garcia, M.D. Hilario Lara, M.D.;Liborio Gomez, M.D.; Walfirdo De Leon, M.D.
Cristobal Manalang, M.D.; Daniel de la Paz, M.D.; Carmelo Reyes, M.D.Jose Rodriguez, M.D.; Agerico B. M. Sison, M.D.
Antonio Sison, M.D.; H.W. Wade, M.D..
Zoology
Leopoldo S. Clemente, Ph.D.; Canuto G. Manuel, D.Sc. Gonzalo Merino, Ph.D.; Heraclio R. Montalban, M.A.
Faustino Q. Otanes, M.S.; Manuel D. Sumulong, M.S., D.V.M.Leopoldo B. Uichanco, D.Sc.; Agustin F. Umali, B.S.
Deogracias V. Villadolid, Ph.D.; Lope M. Yutuc, D.V.M.
Vol. 86 No.1 March 1957
Published by the Institute of Science and Technology(Formerly Bureau of Science)
[Entered as second-class matter at the Post Office at Manila, Phillipines.]
Joaquin Marañon, D.Sc., EditorEduardo Quisumbing, Ph D., Associate Editor
Mauro Garcia, B.S.E., Copy EditorAngel Y. Lira, B.S.C., Junior Copy Editor
Contributing Editors
Anthropology
H.O. Beyer, M.A.;Robert B. Fox, Ph.D.; Ricardo E. Galang, M.A
Botany
Feliciano M. Clara, Ph.D.; E.B. Copeland Ph.D.; T.G. Fajardo, Ph.DA.F. Fischer, C.E., F.M.; Nemesio B. Mendiola, Ph.D
Nicanor G. Teodoro, Ph.D.
Chemistry
F.T. Adriano, Ph.D.; R.H. Aguilar, Ch.E.; Marcos M. Alicante, Ph.D.Felix V. Espino, Ch.E.; Manuel L. Roxas, Ph.D.;
Patrocinio Valenzuela, Ph.D.
Geology
Leopoldo F. Abad, M.S.; Victoriano Elicaño, B.S.; Antonio D. Alvir, Ph.D
Medicine
Manuel V. Arguelles, M.D.; Arturo Garcia, M.D.; Onofre Garcia, M.D. Hilario Lara, M.D.;Liborio Gomez, M.D.; Walfirdo De Leon, M.D.
Cristobal Manalang, M.D.; Daniel de la Paz, M.D.; Carmelo Reyes, M.D.Jose Rodriguez, M.D.; Agerico B. M. Sison, M.D.
Antonio Sison, M.D.; H.W. Wade, M.D..
Zoology
Leopoldo S. Clemente, Ph.D.; Canuto G. Manuel, D.Sc. Gonzalo Merino, Ph.D.; Heraclio R. Montalban, M.A.
Faustino Q. Otanes, M.S.; Manuel D. Sumulong, M.S., D.V.M.Leopoldo B. Uichanco, D.Sc.; Agustin F. Umali, B.S.
Deogracias V. Villadolid, Ph.D.; Lope M. Yutuc, D.V.M.
Vol. 85 No.4 December 1956
Published by the Institute of Science and Technology(Formerly Bureau of Science)
[Entered as second-class matter at the Post Office at Manila, Phillipines.]
Joaquin Marañon, D.Sc., EditorEduardo Quisumbing, Ph D., Associate Editor
Mauro Garcia, B.S.E., Copy EditorAngel Y. Lira, B.S.C., Junior Copy Editor
Contributing Editors
Anthropology
H.O. Beyer, M.A.;Robert B. Fox, Ph.D.; Ricardo E. Galang, M.A
Botany
Feliciano M. Clara, Ph.D.; E.B. Copeland Ph.D.; T.G. Fajardo, Ph.DA.F. Fischer, C.E., F.M.; Nemesio B. Mendiola, Ph.D
Nicanor G. Teodoro, Ph.D.
Chemistry
F.T. Adriano, Ph.D.; R.H. Aguilar, Ch.E.; Marcos M. Alicante, Ph.D.Felix V. Espino, Ch.E.; A.J. Hermano, D.Sc.
Manuel L. Roxas, Ph.D.; Patrocinio Valenzuela, Ph.D.
Geology
Leopoldo F. Abad, M.S.; Victoriano Elicaño, B.S.; Antonio D. Alvir, Ph.D
Medicine
Manuel V. Arguelles, M.D.; Arturo Garcia, M.D.; Onofre Garcia, M.D. Hilario Lara, M.D.;Liborio Gomez, M.D.; Walfirdo De Leon, M.D.
Cristobal Manalang, M.D.; Daniel de la Paz, M.D.; Carmelo Reyes, M.D.Jose Rodriguez, M.D.; Agerico B. M. Sison, M.D.
Antonio Sison, M.D.; H.W. Wade, M.D..
Zoology
Leopoldo S. Clemente, Ph.D.; Canuto G. Manuel, D.Sc. Gonzalo Merino, Ph.D.; Heraclio R. Montalban, M.A.
Faustino Q. Otanes, M.S.; Manuel D. Sumulong, M.S., D.V.M.Leopoldo B. Uichanco, D.Sc.; Agustin F. Umali, B.S.
Deogracias V. Villadolid, Ph.D.; Lope M. Yutuc, D.V.M.
Vol. 85 No.3 September 1956
Published by the Institute of Science and Technology(Formerly Bureau of Science)
[Entered as second-class matter at the Post Office at Manila, Phillipines.]
Joaquin Marañon, D.Sc., EditorEduardo Quisumbing, Ph D., Associate Editor
Mauro Garcia, B.S.E., Copy EditorAngel Y. Lira, B.S.C., Junior Copy Editor
Contributing Editors
Anthropology
H.O. Beyer, M.A.;Robert B. Fox, Ph.D.; Ricardo E. Galang, M.A
Botany
Feliciano M. Clara, Ph.D.; E.B. Copeland Ph.D.; T.G. Fajardo, Ph.D.A.F. Fischer, C.E., F.M.; Nemesio B. Mendiola, Ph.D.
Nicanor G. Teodoro, Ph.D.
Chemistry
F.T. Adriano, Ph.D.; R.H. Aguilar, Ch.E.; Marcos M. Alicante, Ph.D.Felix V. Espino, Ch.E.; A.J. Hermano, D.Sc.
Manuel L. Roxas, Ph.D.; Patrocinio Valenzuela, Ph.D.
Geology
Leopoldo F. Abad, M.S.; Victoriano Elicaño, B.S.; Antonio D. Alvir, Ph.D
Medicine
Manuel V. Arguelles, M.D.; Arturo Garcia, M.D.; Onofre Garcia, M.D. Hilario Lara, M.D.;Liborio Gomez, M.D.; Walfirdo De Leon, M.D.
Cristobal Manalang, M.D.; Daniel de la Paz, M.D.; Carmelo Reyes, M.D.Jose Rodriguez, M.D.; Agerico B. M. Sison, M.D.
Antonio Sison, M.D.; H.W. Wade, M.D..
Zoology
Leopoldo S. Clemente, Ph.D.; Canuto G. Manuel, D.Sc. Gonzalo Merino, Ph.D.; Heraclio R. Montalban, M.A.
Faustino Q. Otanes, M.S.; Manuel D. Sumulong, M.S., D.V.M.Leopoldo B. Uichanco, D.Sc.; Agustin F. Umali, B.S.
Deogracias V. Villadolid, Ph.D.; Lope M. Yutuc, D.V.M.
Vol. 85 No.2 June 1956
Published by the Institute of Science and Technology(Formerly Bureau of Science)
[Entered as second-class matter at the Post Office at Manila, Phillipines.]
Joaquin Marañon, D.Sc., EditorEduardo Quisumbing, Ph D., Associate Editor
Mauro Garcia, B.S.E., Copy EditorAngel Y. Lira, B.S.C., Junior Copy Editor
Contributing Editors
Anthropology
H.O. Beyer, M.A.;Robert B. Fox, Ph.D.; Ricardo E. Galang, M.A
Botany
Feliciano M. Clara, Ph.D.; E.B. Copeland Ph.D.; T.G. Fajardo, Ph.D.A.F. Fischer, C.E., F.M.; Nemesio B. Mendiola, Ph.D.
Nicanor G. Teodoro, Ph.D.
Chemistry
F.T. Adriano, Ph.D.; R.H. Aguilar, Ch.E.; Marcos M. Alicante, Ph.D.Felix V. Espino, Ch.E.; A.J. Hermano, D.Sc.
Manuel L. Roxas, Ph.D.; Patrocinio Valenzuela, Ph.D.
Geology
Leopoldo F. Abad, M.S.; Victoriano Elicaño, B.S.; Antonio D. Alvir, Ph.D
Medicine
Manuel V. Arguelles, M.D.; Arturo Garcia, M.D.; Onofre Garcia, M.D. Hilario Lara, M.D.; Liborio Gomez, M.D.; Walfirdo De Leon, M.D.
Cristobal Manalang, M.D.; Daniel de la Paz, M.D.; Carmelo Reyes, M.D.Jose Rodriguez, M.D.; Agerico B. M. Sison, M.D.
Antonio Sison, M.D.; H.W. Wade, M.D..
Zoology
Leopoldo S. Clemente, Ph.D.; Canuto G. Manuel, D.Sc. Gonzalo Merino, Ph.D.; Heraclio R. Montalban, M.A.
Faustino Q. Otanes, M.S.; Manuel D. Sumulong, M.S., D.V.M.Leopoldo B. Uichanco, D.Sc.; Agustin F. Umali, B.S.
Deogracias V. Villadolid, Ph.D.; Lope M. Yutuc, D.V.M.
Vol. 85 No.1 March 1956
Published by the Institute of Science and Technology(Formerly Bureau of Science)
[Entered as second-class matter at the Post Office at Manila, Phillipines.]
Joaquin Marañon, D.Sc., EditorEduardo Quisumbing, Ph D., Associate Editor
Mauro Garcia, B.S.E., Copy EditorAngel Y. Lira, B.S.C., Junior Copy Editor
Contributing Editors
Anthropology
H.O. Beyer, M.A.;Robert B. Fox, Ph.D.; Ricardo E. Galang, M.A
Botany
Feliciano M. Clara, Ph.D.; E.B. Copeland Ph.D.; T.G. Fajardo, Ph.D.A.F. Fischer, C.E., F.M.; Nemesio B. Mendiola, Ph.D.
Nicanor G. Teodoro, Ph.D.
Chemistry
F.T. Adriano, Ph.D.; R.H. Aguilar, Ch.E.; Marcos M. Alicante, Ph.D.Felix V. Espino, Ch.E.; A.J. Hermano, D.Sc.
Manuel L. Roxas, Ph.D.; Patrocinio Valenzuela, Ph.D.
Geology
Leopoldo F. Abad, M.S.; Victoriano Elicaño, B.S.; Antonio D. Alvir, Ph.D
Medicine
Manuel V. Arguelles, M.D.; Arturo Garcia, M.D.; Onofre Garcia, M.D. Hilario Lara, M.D.; Liborio Gomez, M.D.; Walfirdo De Leon, M.D.
Cristobal Manalang, M.D.; Daniel de la Paz, M.D.; Carmelo Reyes, M.D.Jose Rodriguez, M.D.; Agerico B. M. Sison, M.D.
Antonio Sison, M.D.; H.W. Wade, M.D..
Zoology
Leopoldo S. Clemente, Ph.D.; Canuto G. Manuel, D.Sc. Gonzalo Merino, Ph.D.; Heraclio R. Montalban, M.A.
Faustino Q. Otanes, M.S.; Manuel D. Sumulong, M.S., D.V.M.Leopoldo B. Uichanco, D.Sc.; Agustin F. Umali, B.S.
Deogracias V. Villadolid, Ph.D.; Lope M. Yutuc, D.V.M.
Vol. 84 January to December 1955
Published by the Institute of Science and Technology(Formerly Bureau of Science)
[Entered as second-class matter at the Post Office at Manila, Phillipines.]
Joaquin Marañon, D.Sc., EditorEduardo Quisumbing, Ph D., Associate Editor
Mauro Garcia, B.S.E., Copy EditorAngel Y. Lira, B.S.C., Junior Copy Editor
Contributing Editors
Chemistry
Manuel L. Roxas, Ph. D.; F.T. Adriano, Ph.D.; R.H. Aguilar, Ch.E.Patrocinio Valenzuela, Ph.D.; Marcos M. Alicante, Ph.D.
A.J. Hermano, D.Sc.; Felix V. Espino, Ch.E.
Geology
Victoriano Elicaño, B.S.; Antonio D. Alvir, Ph.D
Medicine
Daniel De La Paz, M.D.; Arturo Garcia, M.D.; Onofre Garcia, M.D.Cristobal Manalang, M.D.; .W. Wade, M.D.; Walfrido de Leon, M.D.
Antonio Sison, M.D.; Agerico B.M. Sison, M.D.; Liborio Gomez, M.D. Ph.D.H.Lara, M.D. Jose Rodriguez, M.D.; Carmelo Reyes, M.D.
Manuel V. Arguelles, M.D..
Botany
Elmer D. Merrill, D.Sc.; E.B. Copeland, Ph.D.; A.F. Fischer, C.E., M.F.T.G. Fajardo, Ph.D.; Nicanor G. Teodoro, Ph.D.;
Feliciano M. Clara, Ph.D., Nemesio B. Mendiola, Ph.D.
Zoology
Leopoldo B. Uichangco, D.Sc.; Deogracias V. Villadolid, Ph.D.Heraclio R. Montalban, M.A.; Gonzalo Merino, Ph.D.;
Canuto G. Manuel, D.Sc. ;Manuel D. Sumulong, M.S., D.V.M.; Lope M. Yutuc, D.V.M.; Faustino Q. Otanes, M.S.;
Leopoldo S. Clemente, Ph.D.
Anthropology
H.O. Beyer, M.A.; Ricardo E. Galang, M.A
Vol. 84. No.4 December 1955
Published by the Institute of Science and Technology(Formerly Bureau of Science)
Joaquin Marañon, D.Sc., EditorEduardo Quisumbing, Ph D., Associate Editor
Mauro Garcia, B.S.E., Copy EditorAngel Y. Lira, B.S.C., Junior Copy Editor
Contributing Editors
Chemistry
Manuel L. Roxas, Ph. D.; F.T. Adriano, Ph.D.; R.H. Aguilar, Ch.E.Patrocinio Valenzuela, Ph.D.; Marcos M. Alicante, Ph.D.
A.J. Hermano, D.Sc.; Felix V. Espino, Ch.E.
Geology
Victoriano Elicaño, B.S.; Antonio D. Alvir, Ph.D
Medicine
Daniel De La Paz, M.D.; Arturo Garcia, M.D.; Onofre Garcia, M.D.Cristobal Manalang, M.D.; .W. Wade, M.D.; Walfrido de Leon, M.D.
Antonio Sison, M.D.; Agerico B.M. Sison, M.D.; Liborio Gomez, M.D. Ph.D.H.Lara, M.D. Jose Rodriguez, M.D.; Carmelo Reyes, M.D.
Manuel V. Arguelles, M.D..
Botany
Elmer D. Merrill, D.Sc.; E.B. Copeland, Ph.D.; A.F. Fischer, C.E., M.F.T.G. Fajardo, Ph.D.; Nicanor G. Teodoro, Ph.D.;
Feliciano M. Clara, Ph.D., Nemesio B. Mendiola, Ph.D.
Zoology
Leopoldo B. Uichangco, D.Sc.; Deogracias V. Villadolid, Ph.D.Heraclio R. Montalban, M.A.; Gonzalo Merino, Ph.D.;
Canuto G. Manuel, D.Sc. ;Manuel D. Sumulong, M.S., D.V.M.; Lope M. Yutuc, D.V.M.; Faustino Q. Otanes, M.S.;
Leopoldo S. Clemente, Ph.D.
Anthropology
H.O. Beyer, M.A.; Ricardo E. Galang, M.A
Vol. 83 January to December 1954
Published by the Institute of Science and Technology(Formerly Bureau of Science)
Joaquin Marañon, D.Sc., EditorEduardo Quisumbing, Ph D., Associate Editor
Mauro Garcia, B.S.E., Copy EditorAngel Y. Lira, B.S.C., Junior Copy Editor
Contributing Editors
Chemistry
Manuel L. Roxas, Ph. D.; F.T. Adriano, Ph.D.; R.H. Aguilar, Ch.E.Patrocinio Valenzuela, Ph.D.; Marcos M. Alicante, Ph.D.
A.J. Hermano, D.Sc.; Felix V. Espino, Ch.E.
Geology
Victoriano Elicaño, B.S.; Antonio D. Alvir, Ph.D
Experimental Medicine
Daniel De La Paz, M.D.; Arturo Garcia, M.D.; Onofre Garcia, M.D.Cristobal Manalang, M.D.; .W. Wade, M.D.;
Walfrido de Leon, M.D.
Clinical Medicine
Antonio Sison, M.D.; Agerico B. M. Sison, M.D. Liborio Gomez, M.D., Ph.D.; H. Lara, M.D.Jose Rodriguez, M.D.; Carmelo Reyes, M.D.
Botany
Elmer D. Merrill, D.Sc.; E.B. Copeland, Ph.D.; A.F. Fischer, C.E., M.F.T.G. Fajardo, Ph.D.; Nicanor G. Teodoro, Ph.D.;
Feliciano M. Clara, Ph.D., Nemesio B. Mendiola, Ph.D.
Zoology
Leopoldo B. Uichangco, D.Sc.; Deogracias V. Villadolid, Ph.D.Heraclio R. Montalban, M.A.; Gonzalo Merino, Ph.D.;
Canuto G. Manuel, D.Sc. ;Manuel D. Sumulong, M.S., D.V.M.; Lope M. Yutuc, D.V.M.; Faustino Q. Otanes, M.S.;
Leopoldo S. Clemente, Ph.D.
Anthropology
H.O. Beyer, M.A.; Ricardo E. Galang, M.A
Vol. 82. January to December 1953
Published by the Institute of Science and Technology(Formerly Bureau of Science)
Joaquin Marañon, D.Sc., EditorEduardo Quisumbing, Ph D., Associate Editor
Contributing Editors
Chemistry
Manuel L. Roxas, Ph. D.; F.T. Adriano, Ph.D.; R.H. Aguilar, Ch.E.Patrocinio Valenzuela, Ph.D.; Marcos M. Alicante, Ph.D.
A.J. Hermano, D.Sc.; Felix V. Espino, Ch.E.
Geology
V. Elicaño, B.S.; Antonio D. Alvir, Ph.D.; Jose Feliciano, Ph.D.
Experimental Medicine
Daniel De La Paz, M.D.; Arturo Garcia, M.D.; Onofre Garcia, M.D.Cristobal Manalang, M.D.; .W. Wade, M.D.;
Walfrido de Leon, M.D.
Clinical Medicine
Antonio Sison, M.D.; Agerico B. M. Sison, M.D. Liborio Gomez, M.D., Ph.D.; H. Lara, M.D.Jose Rodriguez, M.D.; Carmelo Reyes, M.D.
Botany
Elmer D. Merrill, D.Sc.; E.B. Copeland, Ph.D.; A.F. Fischer, C.E., M.F.T.G. Fajardo, Ph.D.; Nicanor G. Teodoro, Ph.D.;
Feliciano M. Clara, Ph.D., Nemesio B. Mendiola, Ph.D.
Zoology
Leopoldo B. Uichangco, D.Sc.; Deogracias V. Villadolid, Ph.D.Heraclio R. Montalban, M.A.; Gonzalo Merino, Ph.D.;
Canuto G. Manuel, D.Sc. ;Manuel D. Sumulong, M.S., D.V.M.; Lope M. Yutuc, D.V.M.; Faustino Q. Otanes, M.S.;
Leopoldo S. Clemente, Ph.D.
Anthropology
H.O. Beyer, M.A.; Ricardo E. Galang, M.A
Vol. 81. No.1 March 1952
Published by the Institute of Science and Technology(Formerly Bureau of Science)
Joaquin Marañon, D.Sc., EditorEduardo Quisumbing, Ph D., Associate Editor
Contributing Editors
Chemistry
Manuel L. Roxas, Ph. D.; F.T. Adriano, Ph.D.; R.H. Aguilar, Ch.E.Patrocinio Valenzuela, Ph.D.; Marcos M. Alicante, Ph.D.
A.J. Hermano, D.Sc.; Felix V. Espino, Ch.E.
Geology
V. Elicaño, B.S.; Antonio D. Alvir, Ph.D.; Jose Feliciano, Ph.D.
Experimental Medicine
Daniel De La Paz, M.D.; Arturo Garcia, M.D.; Onofre Garcia, M.D.Cristobal Manalang, M.D.; .W. Wade, M.D.;
Walfrido de Leon, M.D.
Clinical Medicine
Antonio Sison, M.D.; Agerico B. M. Sison, M.D. Liborio Gomez, M.D., Ph.D.; H. Lara, M.D.Jose Rodriguez, M.D.; Carmelo Reyes, M.D.
Botany
Elmer D. Merrill, D.Sc.; E.B. Copeland, Ph.D.; A.F. Fischer, C.E., M.F.T.G. Fajardo, Ph.D.; Nicanor G. Teodoro, Ph.D.;
Feliciano M. Clara, Ph.D., Nemesio B. Mendiola, Ph.D.
Zoology
Leopoldo B. Uichangco, D.Sc.; Deogracias V. Villadolid, Ph.D.Heraclio R. Montalban, M.A.; Gonzalo Merino, Ph.D.;
Canuto G. Manuel, D.Sc. ;Manuel D. Sumulong, M.S., D.V.M.; Lope M. Yutuc, D.V.M.; Faustino Q. Otanes, M.S.;
Leopoldo S. Clemente, Ph.D.
Anthropology
H.O. Beyer, M.A.; Ricardo E. Galang, M.A
Vol. 81. No.1 March 1952
Published by the Institute of Science and Technology(Formerly Bureau of Science)
Joaquin Marañon, D.Sc., EditorEduardo Quisumbing, Ph D., Associate Editor
Contributing Editors
Chemistry
Manuel L. Roxas, Ph. D.; F.T. Adriano, Ph.D.; R.H. Aguilar, Ch.E.Patrocinio Valenzuela, Ph.D.; Marcos M. Alicante, Ph.D.
A.J. Hermano, D.Sc.; Felix V. Espino, Ch.E.
Geology
V. Elicaño, B.S.; Antonio D. Alvir, Ph.D.; Jose Feliciano, Ph.D.
Experimental Medicine
Daniel De La Paz, M.D.; Arturo Garcia, M.D.; Onofre Garcia, M.D.Cristobal Manalang, M.D.; .W. Wade, M.D.;
Walfrido de Leon, M.D.
Clinical Medicine
Antonio Sison, M.D.; Agerico B. M. Sison, M.D. Liborio Gomez, M.D., Ph.D.; H. Lara, M.D.Jose Rodriguez, M.D.; Carmelo Reyes, M.D.
Botany
Elmer D. Merrill, D.Sc.; E.B. Copeland, Ph.D.; A.F. Fischer, C.E., M.F.T.G. Fajardo, Ph.D.; Nicanor G. Teodoro, Ph.D.;
Feliciano M. Clara, Ph.D., Nemesio B. Mendiola, Ph.D.
Zoology
Leopoldo B. Uichangco, D.Sc.; Deogracias V. Villadolid, Ph.D.Heraclio R. Montalban, M.A.; Gonzalo Merino, Ph.D.;
Canuto G. Manuel, D.Sc. ;Manuel D. Sumulong, M.S., D.V.M.; Lope M. Yutuc, D.V.M.; Faustino Q. Otanes, M.S.;
Leopoldo S. Clemente, Ph.D.
Anthropology
H.O. Beyer, M.A.; Ricardo E. Galang, M.A
Vol. 80 No.3 September 1951
Published by the Institute of Science and Technology(Formerly Bureau of Science)
Joaquin Marañon, D.Sc., EditorEduardo Quisumbing, Ph D., Associate Editor
Contributing Editors
Chemistry
Manuel L. Roxas, Ph. D.; F.T. Adriano, Ph.D.; R.H. Aguilar, Ch.E..; Patrocinio Valenzuela, Ph.D.; Marcos M. Alicante, Ph.D.
A.J. Hermano, D.Sc.; Felix V. Espino, Ch.E.
Geology
V. Elicaño, B.S.; Antonio D. Alvir, Ph.D.; Jose Feliciano, Ph.D.
Experimental Medicine
Daniel De La Paz, M.D.; Arturo Garcia, M.D.; Onofre Garcia, M.D.Cristobal Manalang, M.D.; .W. Wade, M.D.;
Walfrido de Leon, M.D.
Clinical Medicine
Antonio Sison, M.D.; Agerico B. M. Sison, M.D. Liborio Gomez, M.D., Ph.D.; H. Lara, M.D.Jose Rodriguez, M.D.; Carmelo Reyes, M.D.
Botany
Elmer D. Merrill, D.Sc.; E.B. Copeland, Ph.D.; A.F. Fischer, C.E., M.F.T.G. Fajardo, Ph.D.; Nicanor G. Teodoro, Ph.D.;
Feliciano M. Clara, Ph.D., Nemesio B. Mendiola, Ph.D.
Zoology
Leopoldo B. Uichangco, D.Sc.; Deogracias V. Villadolid, Ph.D.Heraclio R. Montalban, M.A.; Gonzalo Merino, Ph.D.;
Canuto G. Manuel, D.Sc. ;Manuel D. Sumulong, M.S., D.V.M.; Lope M. Yutuc, D.V.M.; Faustino Q. Otanes, M.S.;
Leopoldo S. Clemente, Ph.D.
Anthropology
H.O. Beyer, M.A.; Ricardo E. Galang, M.A
Vol. 79 No.4 December 1950
Published by the Institute of Science (Formerly Bureau of Science)
A.S Arguelles, D.Sc., EditorEduardo Quisumbing, Ph D., Associate Editor
Contributing Editors
Chemistry
Manuel L. Roxas, Ph. D.; F.T. Adriano, Ph.D.Joaquin Marañon, D.Sc.; R.H. Aguilar, Ch. E.
Patrocinio Valenzuela, Ph.D.; Marcos M. Alicante, Ph.D.A.J. Hermano, D.Sc.; Felix V. Espino, Ch.E.
Geology
V. Elicaño, B.S.; Antonio D. Alvir, Ph.D.; Jose Feliciano, Ph.D.
Experimental Medicine
Daniel De La Paz, M.D.; Arturo Garcia, M.D.; Onofre Garcia, M.D.Cristobal Manalang, M.D.; Isabelo Conception, M.D.
H.W. Wade, M.D.; Walfrido de Leon, M.D.
Clinical Medicine
Antonio Sison, M.D.; Liborio Gomez, M.D., Ph.D. H. Lara, M.D.Jose Rodriguez, M.D.; Carmelo Reyes, M.D.
Botany
Elmer D. Merrill, D.Sc.; E.B. Copeland, Ph.D.; A.F. Fischer, C.E., M.F.T.G. Fajardo, Ph.D.; Rafael B. Espino, Ph.D.
Nicanor G. Teodoro, Ph.D.; Feliciano M. Clara, Ph.D. Nemesio B. Mendiola, Ph.D.
Zoology
Leopoldo B. Uichangco, D.Sc.; Deogracias V. Villadolid, Ph.D.Heraclio R. Montalban, M.A.; Gonzalo Merino, Ph.D.;
Canuto G. Manuel, D.Sc. ;Manuel D. Sumulong, M.S., D.V.M.; Lope M. Yutuc, D.V.M.; Faustino Q. Otanes, M.S.;
Leopoldo S. Clemente, Ph.D.
Anthropology
H.O. Beyer, M.A.; Ricardo E. Galang, M.A
Vol. 78 No.2 September 1949
Published by the Institute of Science (Formerly Bureau of Science)
A.S Arguelles, D.Sc., EditorEduardo Quisumbing, Ph D., Associate Editor
Contributing Editors
Chemistry
Manuel L. Roxas, Ph. D.; F.T. Adriano, Ph.D.Joaquin Marañon, D.Sc.; R.H. Aguilar, Ch. E.
Patrocinio Valenzuela, Ph.D.; Marcos M. Alicante, Ph.D.A.J. Hermano, D.Sc.; Felix V. Espino, Ch.E.
Geology
V. Elicaño, B.S.; Antonio D. Alvir, Ph.D.; Jose Feliciano, Ph.D.
Experimental Medicine
Daniel De La Paz, M.D.; Arturo Garcia, M.D.; Onofre Garcia, M.D.Cristobal Manalang, M.D.; Isabelo Conception, M.D.
H.W. Wade, M.D.; Walfrido de Leon, M.D.
Clinical Medicine
Antonio Sison, M.D.; Liborio Gomez, M.D., Ph.D. H. Lara, M.D.Jose Rodriguez, M.D.; Carmelo Reyes, M.D.
Botany
Elmer D. Merrill, D.Sc.; E.B. Copeland, Ph.D.; A.F. Fischer, C.E., M.F.T.G. Fajardo, Ph.D.; Rafael B. Espino, Ph.D.
Nicanor G. Teodoro, Ph.D.; Feliciano M. Clara, Ph.D. Nemesio B. Mendiola, Ph.D.
Zoology
Leopoldo B. Uichangco, D.Sc.; Deogracias V. Villadolid, Ph.D.Heraclio R. Montalban, M.A.; Gonzalo Merino, Ph.D.;
Canuto G. Manuel, D.Sc. ;Manuel D. Sumulong, M.S., D.V.M.; Lope M. Yutuc, D.V.M.; Faustino Q. Otanes, M.S.;
Leopoldo S. Clemente, Ph.D.
Anthropology
H.O. Beyer, M.A.; Ricardo E. Galang, M.A
Vol. 78 No.2 June 1949
Published by the Institute of Science (Formerly Bureau of Science)
A.S Arguelles, D.Sc., EditorEduardo Quisumbing, Ph D., Associate Editor
Contributing Editors
Chemistry
Manuel L. Roxas, Ph. D.; F.T. Adriano, Ph.D.Joaquin Marañon, D.Sc.; R.H. Aguilar, Ch. E.
Patrocinio Valenzuela, Ph.D.; Marcos M. Alicante, Ph.D.A.J. Hermano, D.Sc.; Felix V. Espino, Ch.E.
Geology
V. Elicaño, B.S.; Antonio D. Alvir, Ph.D.; Jose Feliciano, Ph.D.
Experimental Medicine
Daniel De La Paz, M.D.; Arturo Garcia, M.D.; Onofre Garcia, M.D.Cristobal Manalang, M.D.; Isabelo Conception, M.D.
H.W. Wade, M.D.; Walfrido de Leon, M.D.
Clinical Medicine
Antonio Sison, M.D.; Liborio Gomez, M.D., Ph.D. H. Lara, M.D.Jose Rodriguez, M.D.; Carmelo Reyes, M.D.
Botany
Elmer D. Merrill, D.Sc.; E.B. Copeland, Ph.D.; A.F. Fischer, C.E., M.F.T.G. Fajardo, Ph.D.; Rafael B. Espino, Ph.D.
Nicanor G. Teodoro, Ph.D.; Feliciano M. Clara, Ph.D. Nemesio B. Mendiola, Ph.D.
Zoology
Leopoldo B. Uichangco, D.Sc.; Deogracias V. Villadolid, Ph.D.Marcos A. Tubangui, M.S., D.V.M.; Heraclio R. Montalban, M.A.
Gonzalo Merino, Ph.D.; Canuto G. Manuel, D.Sc.Manuel D. Sumulong, M.S., D.V.M.; Lope M. Yutuc, D.V.M.
Faustino Q. Otanes, M.S.; Leopoldo S. Clemente, Ph.D.
Anthropology
H.O. Beyer, M.A.; Ricardo E. Galang, M.A
Vol. 78 No.1 March 1949
Published by the Institute of Science (Formerly Bureau of Science)
A.S Arguelles, D.Sc., EditorEduardo Quisumbing, Ph D., Associate Editor
Contributing Editors
Chemistry
Manuel L. Roxas, Ph. D.; F.T. Adriano, Ph.D.Joaquin Marañon, D.Sc.; R.H. Aguilar, Ch. E.
Patrocinio Valenzuela, Ph.D.; Marcos M. Alicante, Ph.D.A.J. Hermano, D.Sc.; Felix V. Espino, Ch.E.
Geology
V. Elicaño, B.S.; Antonio D. Alvir, Ph.D.; Jose Feliciano, Ph.D.
Experimental Medicine
Daniel De La Paz, M.D.; Arturo Garcia, M.D.; Onofre Garcia, M.D.Cristobal Manalang, M.D.; Isabelo Conception, M.D.
H.W. Wade, M.D.; Walfrido de Leon, M.D.
Clinical Medicine
Antonio Sison, M.D.; Liborio Gomez, M.D., Ph.D. H. Lara, M.D.Jose Rodriguez, M.D.; Carmelo Reyes, M.D.
Botany
Elmer D. Merrill, D.Sc.; E.B. Copeland, Ph.D.; A.F. Fischer, C.E., M.F.T.G. Fajardo, Ph.D.; Rafael B. Espino, Ph.D.
Nicanor G. Teodoro, Ph.D.; Feliciano M. Clara, Ph.D.J.K. Santos, Ph.D.; Nemesio B. Mendiola, Ph.D.
Zoology
Leopoldo B. Uichangco, D.Sc.; Deogracias V. Villadolid, Ph.D.Marcos A. Tubangui, M.S., D.V.M.; Heraclio R. Montalban, M.A.
Gonzalo Merino, Ph.D.; Canuto G. Manuel, D.Sc.Manuel D. Sumulong, M.S., D.V.M.; Lope M. Yutuc, D.V.M.
Faustino Q. Otanes, M.S.; Leopoldo S. Clemente, Ph.D.
Anthropology
H.O. Beyer, M.A.; Ricardo E. Galang, M.A
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