516 Proceedings of Royal Society of Edinhurgh. [sess. 
Tuesday, 2*1 th November 1894. 
Professor Copeland, Astronomer-Eoyal for Scotland, 
Vice-President, in the Chair. 
Professor M‘Kendrick read a Paper on “ Observations with the 
Phonograph, with Experimental Illustrations.” 
Monday, 2»rd Decemher 1894. 
Professor Geikie, E.K.S., Vice-President, in the Chair. 
The following Communications were read : — 
1. Notes on a Peculiarity in the Form of the Mammalian Tooth. 
By John Smith, M.D. P. xx. 336. 
2. The Development of the Miillerian Duct of Amphibians. By 
Grego Wilson, M.A., B.Sc. Communicated by Professor Ewart. 
3. On a Theorem relating to the Difference between any two terms 
of the Adjugate Determinant. By Thomas Muir, LL.D. P. xx. 323. 
4. A new Method for Correcting Courses : — by an Instrument for 
the purpose. By Dr George Hay, Pittsburg, Pa. Communicated by 
Dr C. G. Knott. 
5. Note on the Constitution of Volatile Liquids. By Professor Tait. 
6. The Isothermals of Ethylene. By the Same. 
Mr R. G. Alford and Mr J. E. Talmage were balloted for, and 
declared duly elected Fellows of the Society. 
Monday, llth December 1894. 
The Hon. Lord M'Laren, Vice-President, in the Chair. 
The following Communications were read:- — 
1. Obituary Notice of Donald Beith, Esq., W.S. By Patrick 
Murray, Esq., W.S. P. xx. 7. 
2. Notes on Germination in Ponds and Rivers. By H. B. Guppy, 
Esq., M.B. 
3. Experiments on the Hall Effect, and on some related actions in 
Bismuth. By J. C. Beattie, Esq. Communicated by Professor Tait. 
T. xxxviii. 
4. Attraction by Graphic Processes. — Deductions. By George 
Romanes, Esq. Communicated by Professor Tait. 
