1905-6.] 
Meetings of the Society . 
559 
FIFTEENTH ORDINARY MEETING. 
Monday , 2nd July 1906. 
Professor Cram Brown, LL.D., Vice-President, in the Chair. 
The following Communications were read : — 
1. On the Use of Soluble Prussian Blue in investigating the Reducing- 
power of Animal Tissue. By Dr D. Fraser Harris. 
2. The Viscosity of Solutions. Part I. By C. Ranken, B.Sc., 
Carnegie Research Scholar, and Dr W. W. Taylor. Communicated 
by Professor Crum Brown. Trans., vol. 45. 
3. Two Lecture Experiments in Illustration of the Theory of 
Ionisation. By Dr W. W. Taylor. Communicated by Professor 
Crum Brown, p. 325. 
SECOND SPECIAL MEETING. 
Friday, \Wi July 1906. 
Dr R. H. Traquair, F.R.S., Vice-President, in the Chair. 
The following Communications were read : — 
1. Obituary Notice of S. P. Langley, Secretary, Smithsonian Institu- 
tion. By Dr Peddie. p. 546. 
2. The recent Epidemic of Trypanosomiasis in Mauritius : its Cause 
and Progress. By Dr Alex. Edington and Dr J. M. Coutts, 
3. Note on the Smolt to Grilse Stage of the Salmon, with exhibition 
of a Marked Fish recaptured. By Mr W. L. Calderwood. p. 321. 
4. The Effect of Precipitation Films on the Conductivity of 
Electrolytes. Part I. By W. S. Millar, B.Sc., Carnegie Research 
Scholar, and Dr W. W. Taylor. Communicated by Professor Crum 
Brown, p. 447. 
5. The Theory of Alternants in the Historical Order of Development 
up to 1860. By Dr Thomas Muir. p. 357. 
6. The Theory of Circulants in the Historical Order of Development 
up to 1860. By Dr Thomas Muir. p. 390. 
7. On the Length of a Pair of Tangents to a Conic. By Professor 
Anglin. 
8. Further Study of the Two Forms of Liquid Sulphur as Dynamic 
Isomers. By Professor Alexander Smith and Mr C. M. Carson. 
p. 352. 
