PROCEEDINGS 
OF THE 
ROYAL SOCIETY OF EDINBURGH. 
SESSION 1873-74. 
CONTENTS. 
Monday. 24dh November 1873. 
PAGE 
Election of Office-Bearers, .... « 207 
Monday , ls£ December 1873. 
Laboratory Notes. By Professor Tait — 
1. First Approximation to a Thermo-electric Diagram, 208 
2. On the Flow of Water through Fine Tubes, . 208 
Note on the Transformation of Double and Triple Integrals. 
By Professor Tait, ..... 209 
On the Physiological Action of Ozone. By James Dewar, 
Esq., Lecturer on Chemistry, and John G-. M‘Kendrick, 
M.D., Physiological Laboratory, University of Edin- 
burgh, ....... 211 
On a Compound formed by the addition of Bromacetic Acid 
to Sulphide of Methyl, and on some of its Derivatives. 
By Professor Crum Brown and Dr E. A. Letts, . 219 
Note on the Various Possible Expressions for the Force 
Exerted by an Element of one Linear Conductor on an 
Element of another. By Professor Tait, . . 220 
Monday , 22 d December 1873. 
Address on Ozone, by Professor Andrews, Hon. F.B.S.E., 
Vice-President of Queen’s College, Belfast, . . 229 
[Turn over. 
