DONATIONS, 
es: Volume of the late General Vallancey. Pre- 
sented by the Marquis of Normanby. 
_-‘The Rights of Animals. By the Rev. W. H. Drummond. 
Presented by the Author. 
Astronomical Observations made at the Cambridge Obser- 
vatory, by the Rev. James Challis, M. A. Presented by the 
Author. 
Tables of Logarithms. Presented by ee publishers, 
Messrs. Taylor and Walton of London. 
Political Medicine. By T. H. Maunsell, M.D. Pre- 
sented by the Author. . 
Comptes Rendus Hebdomadaires des Seances de l’ Acade- 
mie des Sciences. Par MM. les Secretaires Perpetuels. 
Nos. 2—7. Premier Semestre, 1839. Presented by the 
Academy. 
April 8. 
SIR Wa. R. HAMILTON, A. M., President, in the Chair. 
le 
P Thomas Rhodes, Esq., and John U. Owen, M.D. +» Were 
elected Members of the Academy. 
Professor Lloyd laid on the table of the Academy, the 
ne "apparatus for experiments on the rectilinear, elliptic, and cir- 
Reclar polarization of light, invented by M. Dove of Berlin ; 
also two sets of Fraunhofer’s gratings, presented tohimby  — 
J dward Cooper, Esq. M.P., by whom they were pepe i mt 
from Munich. Ce 
’ Dr. Wilde, a visiter, by permission of the Academy, read 
Som on some Discoveries he had made at Tyre, relating 
to the manufacture of the celebrated Purple Dye. 
