Civ 3 
XVII. Some account of the transit instrument made by Mr. 
Dollond, and lately put up at the Cambridge Observatory. 
Communicated April 13, 1825. By Robert Woodhouse, 
Esq. A.M. F.R.S. - - - - - p. 418 
XVIII. On the fossil Elk of Ireland. By Thomas Weaver, 
Esq. Member of the Royal Irish Academy, of the Royal Thiblin 
Society, and of the IVernerian and Geological Societies. 429 
XIX. Microscopical observations on the Materials of the Brain, 
and of the Ova of Animals, to show the analogy that exists 
between them. By Sir Everard Home, Bart. V. P. R. S. Read 
at the Society for promoting Animal Chemistry, April 12, 
1825. - - 436 
XX. On new compounds of carbon and hydrogen, and on certain 
other products obtained during the decomposition of oil by heat. 
' By M. Faraday, Esq. F, R. S. Cor. Mem. Royal Academy of 
Sciences of Paris, ^c, ----- 440 
XXL Account of the repetition of M. Arago's experiments on 
the magnetism manifested by various substances during the act 
of rotation. By C. Babbage, Esq. F. R. S. and J. F. W. 
Herschel, Esq. Sec. R, S. - - - - 467 
XXII. On the magnetism developed in copper and other substances 
during rotation. In a Letter from Samuel Hunter Christie, 
Esq. M. A. &c. to J. F. W. Herschel, Esq. Sec. R. S. Com- 
municated by J. F. W. Herschel, Esq. - - 497 
XXIII. On the annual variations of some of the principal fixed 
Stars. By J. Pond, Esq. F. R. S. Astron. Royal. 510 
