702 Proceedings of Royal Society of Edinburgh. [sess. 
SECOND ORDINARY MEETING. 
Monday , 20 th December 1897. 
T. B. Sprague, LL.D., in the Chair. 
The following Communications were read : — 
1. Obituary Notice of the Rev. John Wilson, M.A. By C. G. Knott, 
D.Sc. p. i. 
2. Investigations on the Life-History of the Salmon in Fresh Water. 
By F. D. Boyd, J. C. Dunlop, A. L. Gillespie, E. D. W. Greig, G. L. 
Gulland, S. C. Mahalanobis, M. J. Newbigin, and D. Noel Paton. 
Communicated by Dr Noel Paton. 
3. Note on the Passage of Water and other Substances through India- 
rubber Films. By Dr R. A. Lundie. Communicated by Professor 
Tait. pp. 258-264. 
4. A Relation between Permanents and Determinants. By Thomas 
Muir, LL.D. pp. 134-136. 
THIRD ORDINARY MEETING. 
Monday , \Ith January 1898. 
The Rev. Professor Flint, D.D., Yice-President, in the Chair. 
The following Communications were read : — 
1. Note on the Axes of Symmetry which are Crystallographically pos- 
sible. By Hugh Marshall, D.Sc. pp. 62-65. 
2. The Old Red Sandstone of the Orkneys. By John S. Flett, M.A., 
B.Sc. Communicated by Professor Geikie, F.R.S. Trans., xxxix. pp. 
383-424. 
3. On the Fossil Fishes of the Orcadian Series of the Old Red Sand- 
stone of Scotland. ( With Lime Light Illustrations.) By R. H. Traquair, 
M.D., LL.D., F.R.S. 
Mr Alexander Cullen, Principal W. Wallace, and Professor 
G. Ad ami were balloted for, and declared duly elected Fellows of 
the Society. 
FOURTH ORDINARY MEETING. 
Monday , 31s£ January 1898. 
Professor Chrystal, LL.D., Yice-President, in the Chair. 
The following Communications were read : — 
1. Obituary Notice of the late Edmund Chisholm Batten, M.A. By 
Major Chisholm Batten, p. iii. 
