500 ProceediTigs of Royal Society of Edinlurgh. [sess. 
Tuesday, \0tli January 1893. 
Professor Sir W. Turner, F.E.S., Vice-President, in the Chair. 
The following Communications were read : — 
1. On some Modifications of the Water-bottle and Thermometer for 
Deep Sea Research. By John Y. Buchanan, Esq., M.A., F.R.S. (The 
instruments were exhibited.) P. xix. 238. 
2. On Electrolytic Synthesis of Dibasic Acids. Part VI. — On the 
Electrolysis of Ethyl Potassium Dialkylmalonates, and on Secondary 
Reactions occurring in the Electrolysis of Ethyl Potassium Salts of 
Dibasic Acids. By Professor Crum Brown, F.R.S., and Dr James 
Walker. P. xix. 243 {Abstract). T. xxxvii. 361. 
3. On the Comparative Histology and Experimental Physiology of 
the Spleen. By Arthur J. Whiting, M.D. From the Physiological 
Laboratory of the University of Edinburgh. Communicated by Professor 
Rutherford. P. xix. 21 {Abstract). 
Monday, \^th January 1893. 
Professor Copeland, Vice-President, in the Chair. 
The following Communications were read : — 
1. Obituary Notice of the late Dr Keiller. By Dr T. A. G. Balfour. 
P. xix. xxxvi. 
2. Obituary Notice of the late Sir George Macleod. By the Rev. 
W. H. Macleod, B.A. (Cantab.), B.D. P. xix. xl. 
3. On the Present State of Knowledge and Opinion in regard to 
Colour Blindness. By William Pole, F.R.S. L. and F.R.S.E. T. 
xxxvii. 441. P. XX. 103. 
The following Candidates for Fellowship were balloted for, and 
declared duly elected Fellows of the Society : — 
Donald Beith, Esq., W.S. 
Alexander Low Bruce, Esq. 
Alexander Edington, M.B., C.M. 
Monday, 2>0th January 1893. 
Professor Sir Douglas Maclagan, President, in the Chair. 
The following Communications were read : — 
1. Obituary Notice of the late Sir George Airy. By Professor Cope- 
land. P. xix. iii. 
