824 F. General OLR( 1979)26(I 2)

fouling. Offshore Marine Studies Unit, Aberdeen University, Aberdeen, Scotland. (smf)

fabricating marine risers from titanium, and riserless drilling systems are also considered. (izs)

79:6347 Stickney, R. R. and J. D. Dodd, 1979. Artificial prop-

agation of a salt marsh. Sea Front., 25(3): 173-179.

21. Books, collations

79:6348 Conveners, 1978. Symposium sur le courant des

Canaires: upwelling et ressources vivantes. (Las Palmas, 11-14 avril 1978.) [Symposium on the Canary Current: upwelling and living resources. Las Palmas, 11-14 April 1978.] Doc. scient. Cent. Rech. oc~anogr., Dakar-Thiaroye, 67: ca. 225 pp.; 9 papers.

Upwelling surface variability; chlorophyll content; benthic hiomass; pelagic fisheries composition, reproductive cycles and migrations; and sediment organic matter partitioning off Africa's west coast are discussed in 9 papers. (izs)

79:6349 Smith, D. R. et al., 1979. Drilling technology. Ocean

Ind., 14(6): 37-65; 6 papers.

Six papers discuss some recent advances in offshore drilling including the technologies enabling a record depth well in 4876 ft and drilling in currents as high as 3 knots. Utilization of high impact plastics to extend the operational depths of existing vessels by 40%,

22. Miscellaneous 79:6350

Pearce, B. G. and B. Shackel, 1979. The ergonomics of scientific instrument design. J. Phys., scient Instrums, E, 12(6): 447-454.

Simple problems like panel layout design are now out of style in ergonomics, which currently portrays instruments as parts of larger information systems which frequently include a human element. But the field, in all its aspects, might be very important for design considerations applicable to cramped, uncomfortable or dangerous work environments. Department of Human Sciences, Loughborough University of Technology, Loughborough, Leicester- shire LEll 3TU, U.K. (fcs)

79:6351 Schnick, R. A. and F. P. Meyer, 1978. Registration of

thirty-three fishery chemicals: status of research and estimated costs of required contract studies. Invests Fish Control, 86:19 pp.

Information given for each chemical includes its sponsor, current registration status, research situation in six categories (toxicity to target and nontarget organisms, field testing, physiological studies, analytical methods development, counteraction, and mammalian safety determination), costs of required contract studies, and the prognosis for registration of the use of each compound. U.S. Fish and Wildlife Service, Fish Control Laboratory, P.O. Box 818, La Crosse, Wis. 54601, U.S.A.