PAGE 
111 
Monday, 15 th March 1886. 
Hie Volumetric Estimation of Inorganic Nitrites. By G. Armstrong Atkin- 
; son, M.B., C.M., Assistant to the Professor of Materia Medica in the Uni- 
versity of Edinburgh, ....... 
The Absolute Determination of the Strength of an Electric Current by Means 
of the Balance. By Professor James Blyth, M.A., 
bn the Nature of the Relationship between Urea-Formation and Bile Secretion. 
By D. Noel Baton, M.B., C.M., . . . . . . 
£7ote on the Collisions of Elastic Spheres. By Professor Tait, . 
Monday, 5th April 1886. 
By F. 
3n some Variations in the Structure of Wool and other Allied Fibres. 
H. Bowman, D.Sc., F.B.S.E., FTL.S., F.C.S., &c. (Plate XXIV.), . 
On the Comparison of the Intensity of Gravity at different Stations. By Pro- 
j fessor Tait, . ... 
On the Reproductive Organs in the Genus Eudrilus, E.P. By Frank E. 
I Beddard, M.A., F.Z.S., Prosector to the Geological Society of London. 
(Plate XXV.), . . . . . 
642 
650 
655 
655 
657 
672 
672 
Monday, 19 th April 1886. 
On a new form of Portable Spring Balance for the Measurement of Terrestrial 
Gravity. By Sir W. Thomson, ...... 683 
Measurements of the Electro-Motive Force of a Constant Voltaic Cell with 
Moving Plates. By A. P. Laurie, B.Sc., B.A., .... 686 
,Note on the Formation of the Hectocotylus in Rossia. By W. E. Hoyle, M.A., 686 
On some Definite Integrals. By Professor Tait, .... 686 
On Alterations in the Electric Conducting Power of Alloys at their Melting 
Point. By Harry Rainy, M.A., and R. D. Clarkson, B.Sc. (Plate XXVI.), 686 
-Examples upon the Reading of the Circle or Circles of a Knot. By the Rev. 
Thomas P. Kirkman, M.A., F.R.S., ..... 693 
Monday, 3rd May 1886. 
Notes on the Waganda Tribe of Central Africa. By Robert W. Felkin, M.D., 
F.R.G.S., Fellow of the Anthropological Societies of London and Berlin, 
&c. (Plate XXVII.), 
On the Drainage Areas of Continents, and their Relation to Oceanic Deposits. 
By John Murray, Esq., . . . . . . 
699 
770 
Monday , 11 th May 1886. 
On the Vitality of the Spores of Parasitic Fungi, and the Antiseptic Properties 
of Ferrous Sulphate. By Dr A. P. Griffiths, .... 771 
The Action of Benzoylecgonin. By Ralph Stockman, M.D., Assistant to the 
Professor of Materia Medica, University of Edinburgh, . . . 771 
Laws of Solution. By William Durham, Esq., . . . . 779 
On the Fructification of some Ferns from the Carboniferous Formation. By 
R. Kidston, F.G.S. Communicated by Dr Traquair, . . . 783 
Monday, 7 th June 1886. 
On the Tidal Variation of Salinity and Temperature in the Estuary of the Forth. 
By Hugh Robert Mill, D.Sc., and J. T. Morrison, M.A., of the Scottish 
Marine Station. (Plate XXVIII.) ...... 
790 
