374 Proceedings of the Royal Society of Edinburgh. [Sess. 
4. The Inversion of Cane Sugar by Optically- Active Acids. By Theodore 
Rettie, B.Sc., and W. W. Taylor, M.A., D.Sc. Preliminary Note. Communicated 
by Professor Crum Brown. 
A Paper by Professor J. Y. Simpson was postponed to the next meeting. 
The following Candidates for Fellowship were balloted for, and duly 
elected Fellows of the Society :• — Mr Charles E. S. Phillips, Mr Edward 
Oswald Fergus, and Mr Edwin Bramwell, M.B., F.R.C.P.E., M.R.C.P. 
(Lond.). 
THIRD ORDINARY MEETING. 
Monday, 3rd December 1906. 
Professor Crum Brown, F.R.S., Vice-President, in the Chair. 
The following Communications were read : — 
1. On the Sporulation of Amoeba proteus. By Professor J. Y. Simpson, D.Sc. 
2. Results of Removal and Transplanation of Ovaries. By F. H. A. Marshall, 
D.Sc., and W. A. Jolly, M.B. ( With Lantern Illustrations.) Trans., vol. xlv. 
pp. 589-599. 
3. The Influence of an Excessive Meat Diet on the Osseous System. By 
Chalmers Watson, M.D. Communicated by Professor Schafer, F.R.S. pp. 2-5. 
4. The Effect of a Meat Diet on Fertility and Lactation. By B. P. Watson, 
M.D., F.R.C.S.E. Communicated by Professor Schafer, F.R.S. pp. 6-10. 
5. The Effects of Diet on Fertility and Structure of the Uterus. By Malcolm 
Campbell, M.D., and Chalmers Watson, M.D. Communicated by Professor 
Schafer, F.R.S. pp. 11-13. 
6. The Minors of a Product-Determinant. By Thomas Muir, LL.D. pp. 79-87. 
FOURTH ORDINARY MEETING. 
Monday, YitL December 1906. 
Professor A. Gray, LL.D., F.R.S., Vice-President, in the Chair. 
The following Communications were read : — 
1. The Hsemorenal Salt Index as a Test of the Functional Efficiency of the 
Kidney. By Dawson Turner, M.D., F.R.C.P.E. ( With Lantern Illustrations.) 
2. Magnetisation and Resistance of Nickel at High Temperatures. Part II. By 
C. G. Knott, D.Sc. Trans., vol. xlv. pp. 547-554. 
3. The Relation between Normal Take-up or Contraction and Yarn Number for 
the same Degree of Twist in Twisted Threads. By Thomas Oliver, B.Sc. Com- 
municated by Dr C. G. Knott, pp. 93-106. 
4. The Relation between Normal Take-up or Contraction and Degree of Twist 
in Twisted Threads when the Singles are of Unequal Sizes. By Thomas Oliver, 
B.Sc. Communicated by Dr C. G. Knott, pp. 107-116. 
