Contents. 
V 
PAGE 
ISTote on the Influence of Pressure on the Solubility of Carbonate of 
Lime in Sea Water containing Free Carbonic Acid. By W. G. 
Eeid, Esq. Communicated by Dr John Murray, . . .151 
On the Distribution of Carbonate of Lime on the Floor, and in the 
Waters of the Ocean. By Dr John Murray, . . . 158 
On the Number of Dust Particles in the Atmosphere. By John 
Aitken, Esq., ....... 158 
Preliminary Note on the Duration of Impact. By Professor Tait, . 159 
A Bathymetrical Survey of the Chief Perthshire Lochs, and their 
relation to the Glaciation of the District. By James Grant Wilson, 
Esq., H.M. Geological Survey. Communicated by Dr Archibald 
Geikie, F.R.S., Director-General of the Geological Survey, . 159 
Contact-Phenomena of some Scottish Olivine-Diabases. By Ernst 
Stecher,- Ph.D., Leipzig. Communicated by Dr Archibald Geikie, 
F.B.S., Director-General of the Geological Survey, . . 160 
Experimental Kesearches in Mountain Building. By Henry M. 
Cadell, Esq. of Grange, B.Sc., F.R.S.E., of H.M. Geological Sur- 
vey of Scotland, ....... 172 
Observations on the Movements of the Entire Detached Animal, and 
of Detached Ciliated Parts of Bivalve Molluscs, viz,. Gills, Mantle- 
Lobes, Labial Palps, and Foot. By D. M‘Alpine, Esq., F.C.S. 
Communicated by W. E. Hoyle, Esq., M.A. (Plates I., II.), . 173 
, Keport on the Fishes obtained by Dr John Murray in Deep Water 
on the North-West Coast of Scotland, between April 1887 and 
March 1888. By Dr A. Gunther, F.R.S., Keeper of the Zoological 
Department, British Museum. (Plates III., IV.), . . . 205 
Morphological Changes that occur in the Human Blood during 
Coagulation. By Professor John Berry Hay craft and E. W. 
Carlier, Esq., M.B., ....... 220 
On the Mean Free Path, and the average Number of Collisions per 
particle per second in a Group of Equal Spheres. By Prof. Tait, 225 
Note on the Compressibility of Glass at different Temperatures. By 
Professor Tait, . . . . . . . 226 
Exhibition of Photographs of the Lunar Eclipse of 28th January 
1888. By W. Peck, Esq., F.B.A.S., .... 226 
Illegitimacy in the Parish of Marnoch. By George Seton, Esq., 
M.A. Oxon., ....... 227 
Notes on the Use of Mercuric Salts in Solution as Antiseptic 
Surgical Lotions. By G. Sims Woodhead, M.D., F.R.C.P. Edin., 235 
The Effect of Differential Mass-Motion on the Permeability of a Gas. 
By Professor Tait, ....... 249 
On a New Diffusiometer and other Apparatus for Liquid Diffusion. 
Part II. By J. J. Coleman, Esq., F.R.S.E., F.I.C., F.C.S., . 249 
Note on the Determination of Diffusivity in Absolute Measure from 
Mr Coleman’s Experiments. By the President, . . . 256 
