293 



DONATIONS. 



Manuscript Volume of the late General Vallancey. Pre- 

 sented by the Marquis of Normanby. 



The Rights of Animals. By the Rev. W. H. Drumrnond. 

 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 the 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 VAcade- 

 mie des Sciences. Par MM. les Secretaires Perpetuels. 

 Nos. 2 — 7. Premier Semestre, 1839. Presented by the 

 Academy. 



April 8. 



SIR Wm. R. HAMILTON, A. M., President, in the Chair. 



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 

 apparatus for experiments on the rectilinear, elliptic, and cir- 

 cular polarization of light, invented by M. Dove of Berlin • 

 also two sets of Fraunhofer's gratings, presented to him by 

 Edward Cooper, Esq. M.P., by whom they were brought 

 from Munich. 



Dr. Wilde, a visiter, by permission of the Academy, read 

 a paper on some Discoveries he had made at Tyre, relating 

 to the manufacture of the celebrated Purple Dye. 



