The Cathach, Deposited in the Museum (Continued)Author(s): Richard O'DonnellSource: Proceedings of the Royal Irish Academy (1836-1869), Vol. 2 (1840 - 1844), pp. 403-404Published by: Royal Irish AcademyStable URL: http://www.jstor.org/stable/20520165 .

Accessed: 17/05/2014 00:59

Your use of the JSTOR archive indicates your acceptance of the Terms & Conditions of Use, available at .http://www.jstor.org/page/info/about/policies/terms.jsp

.JSTOR is a not-for-profit service that helps scholars, researchers, and students discover, use, and build upon a wide range ofcontent in a trusted digital archive. We use information technology and tools to increase productivity and facilitate new formsof scholarship. For more information about JSTOR, please contact support@jstor.org.

.

Royal Irish Academy is collaborating with JSTOR to digitize, preserve and extend access to Proceedings of theRoyal Irish Academy (1836-1869).

http://www.jstor.org

This content downloaded from 195.78.108.86 on Sat, 17 May 2014 00:59:42 AMAll use subject to JSTOR Terms and Conditions

PROCEEDINGS OF

THE ROYAL IRISH ACADEMY.

1843. No. 41.

June 12.

SIR WM. R. HAMILTON, LL.D., President, in the Chair.

Sir William Betham read the following letter from Sir Richard O'Donel, Bart.:

"April 24th, 1843. "MY DEAR SIR WILLIAM,

" I have to apologise for all the trouble I have

given you about the Caah, but several circumstances have

come to my knowledge within the last few days, which induce

me to desire that it should be placed in the Royal Irish

Academy, next to the Cross of Cong; but I would not take

any step in the matter without first consulting you, and

having done so, 1 write you this note to request you will be

so good as to make known my wishes to the Dublin Society

upon the subject, and to have it removed to the Royal Irish

Academy, upon their taking charge of it as my property, placing it during the day beside the Cross of Cong, and

having it each night placed in a fire proof box. " I again beg leave of you to pardon me for all this trou

ble, and to accept my thanks for your kindness at all times, and believe me,

"Dear Sir William, "Very sincerely yours,

RRICHARD O'DONEL. "Sir William Betham, Record Tower, Castle."

VOL. Il. 2N

This content downloaded from 195.78.108.86 on Sat, 17 May 2014 00:59:42 AMAll use subject to JSTOR Terms and Conditions

404

RESOLVED,-That the tlhanks of the Academly be given to Sir Richard O'Donel, Bart., for hiis valuable deposit, and that the custody of it be accepted by the Academy on the terms proposed by him.

Sir Wm. Betlain gave an account of the Caah.

Professor Kane read a notice of some recent Determina tions of the Heat developedl durinig the Formation of certain Compoundls of Chlorine, by Dr. Andrews.

Trhe present results were obtained by a similar metlhod to that described in the last volume of the Transactions of the Academy. The chlorine, however, was employed in the dry state, and the compounds being formed without the pre sence of water, the heat of combiniation was deduced fromi a

single direct experitment. In the case of potassium, an im portant modification of the apparatus was required, which will be described when the full details of the experiments are communicated to the Academy. The numbers in the first column are the immediate results of experiments, and ex press, in degrees of Fahrenheit's scale, the heat produced during each reaction, in reference to the chlorine as unlit,

that is, the degrees through whiclh a weight of water equal

to that of the combining chlorine would be raised by the heat

developed in the formation of each compound. The num

bers in the second column express the sanme lheat, referred

to the combining metal as unit, and are deduced by calcula

tion from the others.

K + Cl 53790 .. 59540, Sn + Cl2.. 16210.. 13460. Sb2 + Cl6. . 15700.. 11450.

As2 + C13. . 12680.. 8980.

Dr. Allman read a notice of a new species of Linaria.

This plant was discovered growing on the banks of the

River Bandon, and Dr. Allman considered it sufficiently dis

This content downloaded from 195.78.108.86 on Sat, 17 May 2014 00:59:42 AMAll use subject to JSTOR Terms and Conditions