CONTENTS. 
PAGE 
Election of Office-Bearers, ...... 1 
Opening Address. By Sir Douglas Maclagan, President, . 2 
On the Madder-Staining of Dentine. By W. G. Aitchison 
Kobertson, M.D., D.Sc., F.K.C.P.E., Physiological Laboratory, 
University of Edinburgh. (With a Plate), . . .14 
On the Comparative Histology and Physiology of the Spleen. 
By Arthur J. Whiting, M.D., . . . . .21 
Induction through Air and Water at Great Distances without the 
use of Parallel Wires. By Charles A. Stevenson, B.Sc., 
F.K.S.E., M. Inst. C.E. (With a Plate), . . .25 
On a New Apparatus for Counting Bacterial Colonies in Koll- 
Cultures. By J. Buchanan Young, M.B., B.Sc., Public Health 
Laboratory, University of Edinburgh. Communicated by Sir 
Douglas Maclagan. (With a Plate), . . . .28 
Abstract of Paper on the “Digestion of Sugars.” By W. G. 
Aitchison Eobertson, M.D., D.Sc., F.R.C.P.E., . . .30 
On Properties of the Parabola. By Professor Anglin, . . 35 
Preliminary Note on Observations of the Minor Planet Victoria 
in 1889. By Dr D. Gill, H.M. Astronomer at the Cape of 
Good Hope, ....... 47 
On the Early History of some Scottish Mammals and Birds. 
By Professor Duns, D.D., . . . . .50 
On a Remarkable Glacier-Lake, formed by a Branch of the 
Hardanger-Jokul, near Eidfiord, Norway. By Robert Munro, 
M.D., M.A. (With a Plate), . . . . .53 
On the Compressibility of Liquids in connection with their Mole- 
cular Pressure. By Professor Tait, . . . .63 
On certain Concretions from the Lower Coal Measures, and the 
Fossil Plants which they contain. By H. B. Stocks, F.C.S. 
Communicated by John Murray, LL.D., . . . .69 
On some Observations made without a Dust Counter on the 
Hazing Effect of Atmospheric Dust. By John Aitken, Esq., 
F.R.S. (With a Plate), ...... 76 
Breath Figures. By John Aitken, Esq., F.R.S., . . .94 
