PROCEEDINGS 
OF THE 
ROYAL SOCIETY OF EDINRCRGH. 
Yol. XIX. 
SESSION 1 8 9 1-9 2. 
CONTENTS. 
PAGE 
Election of Office-Bearers, ...... 1 
Chairman’s Ojiening Address, . . . .2 
Note on a Theorem regarding a Series of Convergents to the 
Boots of a- Number. By Thomas Mum, LL.D., . . .15 
A Preliminary Communication on the Electrical Besistance of 
Various Urines. By Da;wson Turner, M.D., F.B.C.P. Edin., 
M.B.C.P. London, . . . . . . ,20 
Note on a Problem of Elimination connected with Glissettes of an 
Ellipse or Hyperbola. By Thomas Muir, LL.D., . .25 
On the Foundations of the Kinetic Theory of Gases. Y. By . 
Professor Tait, . . . . . . .32 
The Lesser Borqual {Balcenoptera rostmta) in the Scottish Seas, 
with Observations on its Anatomy. By Professor Sir Wm. 
Turner, LL.D., D.C.L., F.B.S., . . . . .36 
The Tactics adopted by certain Birds when Flying in the Wind. 
By Mr B. YV. YVestern. (With a Plate), . . .76 
Note on Certain Bemarkable Volume Effects of Magnetisation. 
By Professor Cargill G. Knott, D.Sc., and A. Shand, Esq., . 85 
On the Eliminant of the Equations of the Ellipse-Glissette. By 
the Hon. Lord M‘Laren, . . . . . .89 
Ptomaines extracted from Urine in certain Infectious Diseases. 
By Dr A. B. Griffiths, F.B.S.E., F.C.S., &c., . . .97 
On a Crystalline Globulin occurring in Human Urine. By D. 
NoEl Baton, . . . . . . .102 
