1899-1900.] 
Meetings of the Society. 
431 
FIFTH ORDINARY MEETING. 
Monday , 5 th February 1900. 
The Rev. Professor Duns, Vice-President, in the Chair. 
The following Communications were read : — 
1. On a Thermostat electrically heated and regulated. By Dr John 
Gibson and Alan W. C. Menzibs, M.A., B.Sc. 
2. On the Law of Elastic Fatigue. By Dr W. Peddie. (Abstract.) 
p. 90. 
3. On Magnetic Screening. By Dr C. G. Knott. 
4. The Clark Cell versus the Cadmium Cell as a Standard of Electro- 
motive Force. By John Henderson, Esq., D.Sc., A.I.E.E. 
5. The Action of Silver Salts on Solution of Ammonium Persulphate. 
By Hugh Marshall, D.Sc. pp. 163-168. 
Mr Thomas P. Watson, Sir Bhagvat Sinh Jee, G.C.I.E., H.H. 
the Thakore Sahib of Gondal, and Mr Douglas A. Gilchrist were 
balloted for, and declared duly elected Fellows of the Society. 
SIXTH ORDINARY MEETING. 
Monday , 19^ February 1900. 
Professor M'Kendrick, Vice-President, in the Chair. 
Sir John Sibbald gave an address — 
“ On the Statistics of Suicide in Scotland.” 
SEVENTH ORDINARY MEETING. 
Monday , 5 th March 1900. 
The Rev. Professor Duns, D.D., Vice-President, in the Chair. 
The following Communications were read : — 
1. On certain Aggregates of Determinant Minors. By Thomas 
Muir, Esq., LL.D. pp. 142-154. 
