IV 
On a New Method and Reagent for detecting Chlorides, Bromides, and Iodides, 
in the presence of each other, and also in presence of Nitrates and Chlorates. 
By John Jas. Barlow, Esq., Manchester Technical School, . 
On the Anatomy of Suberites domuncula. By J. Arthur Thomson, M.A. 
Communicated by Patrick Geddes, . % I 
History and Theory of Spermatogenesis. By Patrick Geddes and J. Arthur 
Thomson, M.A. (Plate XXIX.), . . . . . 
On Tungsten. -By John Waddell, D.Sc. Communicated by Dr Crum Brown, 
On Certain Theorems mainly connected with Alternants. By A. H. Anglin, 
M. A., LL.B., F.R.S. (Edin.), &c., . . . / . . 
Monday , 21 st June 1886. 
The Diurnal Variation in the Direction of the Summer Winds on Ben Nevis. 
By R. T. Omond, Esq., Superintendent, Ben Nevis Observatory, 
The Meteorology of Ben Nevis. By Alex. Buchan, M.A., 
On some Algoid Lake-Balls found in South Uist. By G. W. W. Barclay, 
Esq., F.R.S. E. (Plate XXX.), ' 
The Duration of the Life of Red Blood Corpuscles, as ascertainable by Trans- 
fusion. By William Hunter, M.D. (Edin.), late President of the Royal 
Medical Society, Edinburgh, . . . . ... 
Monday , 5th July 1886. . 
The Electric Resistance of Nickel at High Temperatures. By Professor C. G. 
Knott, ......... 
Effect of External Forces on a System of Colliding Spheres. By Professor Tait, 
Notes on the Characters and Mode of Formation of the Coral Reefs of the 
Solomon Islands, being the Results of Observations made in 1882-84, by 
H. B. Guppy, M.B., F.G.S., during the Surveying Cruise of H.M.S. “ Lark,” 
The Eggs and Early Stages of some Teleosteans. By J. T. Cunningham, Esq., 
The Reproductive Organs of Bdellostoma, and a Teleostean Egg from the West 
Coast of Africa. By the Same, . . . . . 
A Synthetic Outline of the History of Biology. By Patrick Geddes, . 
Theory of Growth, Reproduction, Sex, and Heredity. By Patrick Geddes, . 
Monday , 19th July 1886. 
On the Colours of Thin Plates. By the Right Hon. Lord Rayleigh, 
Ueber algebraische Knoten. By Professor Dr Fr. Meyer of Tubingen. Com- 
municated by Professor Tait. (Plates XXXI., XXXII.), . 
On Amagat’s Manometre a Pistons libres. By Professor Tait, 
On the Electrical Properties of Hydrogenised Palladium. By Professor Knott, 
Electro-Chemical Reactions between Metals and Fused Salts. By Thomas 
Andrews, F.R.S.E., F.C.S., . . . . . 
On the Hygrometry of Ben Nevis and of the Scottish Marine Station. By 
H. N. Dickson, Esq. Communicated by Professor Tait, . 
The Temperature of Loch Lomond and Loch Katrine during Winter and Spring. 
By J. T. Morrison, B.Sc. Communicated by pr J. Murray, 
Note on the Surface Temperature near a Tidal Race. By the Same, 
Further Remarks on Dew. By John Aitken, Esq., 
On the Objective Cause of Sensation. Part II., Taste. By Professor J. B. 
Haycraft, . . . . ‘ . 
Concluding Address. By Robert Gray, Esq., Vice-President, . 
Donations to the Library, . . . . . . . 
Index, . . . . . . . 
