382 
Proceedings of the Royal Society of Edinburgh. [Sess. 
THIRD SPECIAL MEETING. 
Monday, 8th July 1907. 
Dr Robert Munro, Vice-President, in the Chair. 
The following Communications were read : — 
1. The Plant Remains in the Scottish Peat Mosses. Part III. — The Scottish 
Highlands and the Shetlands. By Francis J. Lewis, F.L.S., Lecturer in Botany, 
University of Liverpool. Communicated by Professor Geikie, F.R.S. ( With 
Lantern Illustrations.) Trans., vol. xlvi. 
2. Note on the Abyssal Temperature of Fresh-water Lakes. By E. M. 
Wedderburn, M.A., LL.B. ( With Lantern Illustrations.) 
3. On the Action of Sodium Ethylate on Trichlormethyl-sulphonic Chloride. 
By Professor A. Crum Brown, F.R.S. , and T. F. Cowie, B.Sc. pp. 369-370. 
4. On a Hybrid between Prejvalsky’s Horse (Equus prejvalshii) and a Highland 
Pony. By Professor J. C. Ewart, F.R.S. 
5. A Note on Reflected Mirage. By C. G. Knott, D.Sc. 
6. The System Sulphur-Iodine. By Professor Alex. Smith and C. M. Carson. 
7. Precipitated Sulphur. By Professor Alex. Smith and R. H. Brownlee. 
pp. 308-311. 
8. Preliminary Note on the Optical Rotations (throughout the Spectrum), the 
Electrical Conductivities, and the Densities, of Mixtures of Sodium-Potassium- 
Tartarate and Ammonium-Molybdate in Aqueous Solution. By James R. Milne, 
D.Sc. pp. 271-280. 
9. The Composition of Terrigenous Deposits. By F. W. Clarke, D.Sc., LL.D., 
Chief Chemist U.S. Geological Survey. Communicated by Sir John Murray, 
K.C.B., F.R.S., etc. pp. 269-270. 
SIXTEENTH AND LAST ORDINARY MEETING. 
Monday, 15 th July 1907. 
Dr Robert Munro, Vice-President, in the Chair. 
PRIZES. 
The Keith Prize for the biennial period 1903-1905 was presented to 
Thomas H. Bryce, M.A., M.D., for his two papers on “ The Histology of 
the Blood of the Larva of Lepidosiren paradoxa ” published in the 
Transactions of the Society within the period. 
The Chairman, in presenting the Prize, read the following statement : — 
Dr Bryce’s articles deal with the structure and development of the 
blood corpuscles and the development of the blood-forming organs in 
