On the Four Surfaces of an Aplanatic Ohjective. By the Hon. Lord McLaren. 
(Plates XIV., XV.), 
Quaternion Notes. By Professor Tait, ...... 
Monday^ l^tli June 1888. 
Exhibition of M. Amagat’s Photographs of the Crystallisation of the Tetra- 
chloride of Carbon under Pressure alone. By the Secretary, 
On the Development and Life-Histories of the Food and other Fishes. By Prof. 
W. Carmichael MTntosh, F.R.S., and E. E. Prince, Esq., 
On certain Theorems mainly connected with Alternants (II.). By Professor 
Anglin, M.E.I.A., ........ 
Preliminary Note on a Method by means of which the Alkalinity of the Blood 
may quantitatively be Determined. By Professor John Berry Haycraft, 
and Dr R. T. Williamson, ....... 
The Electrolytic Decomposition of Proteid Substances. By George N. 
Stewart, Esq., . . . . . . . ^ . 
On the Malpighian Tubules of Libellula dqn'essa. By Dr A. B. Griffiths, 
F.R.S. (Edin.), F.C.S. (Loud, and Paris), ..... 
On a Fungoid Disease in the Roots of Cucumis sativa. By Dr A. B. Griffiths, 
F.R.S. (Edin.), F.C.S. (Lond. and Paris). (Plate XVI.), 
Monday, 2nd July 1888. 
On Fossil Fishes from the Pumpherston Oil Shale, with Exhibition of Speci- 
mens. By Dr R. H. Traquair, F.R.S., . 
On the Variation of Transition-Resistance and Polarisation with Electromotive 
Force and Current Density. By W. Peddie, D.Sc. (Plate XVII.), 
The Metamorphosis of British Euphausiidse. By George Brook, Esq., and W. 
E. Hoyle, Esq., M.A. (Oxon.), ...... 
Notes on a Lucifer-like Decapod Larv^a from the West Coast of Scotland. By 
George Brook, Esq., . . . .... 
On Invertebrate Blood removed from the Vessels, and entirely surrounded by 
Oil. By Professor John Berry Haycraft and E. W. Carrier, Esq., M.B., 
On Laplace’s Theory of the Internal Pressure in Liquids. By Professor Tait, . 
Monday, 9th July 1888. 
The Mechanism of the Separation of the Placenta and Membranes during Labour. 
By D. Berry Hart, M.D., F.R.C.P.E. (Plates XVIII., XIX.), . 
The Pathology of Cystic Ovary. By J. W. Martin, M.D. Communicated by 
Dr WOODHEAD, ........ 
Histological Observations on the Muscle Fibre and Connective Tissue of the 
Uterus during Pregnancy and the Puerperium. By T. A. Helme, Esq., 
M. B. Communicated by Dr Woodh'ead, ..... 
The Air in Coal-Mines. By T. G. Nasmyth, M.B., D.Sc., 
Monday, IQtli July 1888. 
Obituary Notice of the late Robert Gray, Esq., Vice-President. By Dr R. H. 
Traquair, F.R.S., . . . . . 
On some , Relations between Magnetism and Twist in Iron and Nickel. By 
Cargill G. Knott, D.Sc., ....... 
On the Fossil Plants in the Ravenhead Collection in the Liverpool Museum. 
By R. Kidston, Esq., ...... 
On the Action of Carbonic Acid Water on Olivine. By Alexander John- 
stone, Esq., F.G.S., ........ 
Is the Law of Talbot true for very rapidly Intermittent Light? By George 
N. Stewart, Esq., ........ 
On the Specific Gravity of the Water in the Firth of Forth and the Clyde Sea 
Area. By Hugh Robert Mill, D.Sc., Scottish Marine Station, . 
Arrested Twin Development. By Macdonald Brown, Esq., M.B., 
On Numerical Solution of Equations in Variables of the ?ith Degree. By the 
Hon. Lord McLaren, ........ 
Alternants which are the constant Multiples of the Difference-Product of the 
Variables. By Professor Anglin, M.A., LL.D., &c.. 
Chairman’s Closing Remarks, ....... 
The Theory of Determinants in the Historical Order of its Development By 
Thomas Muir, M. A., LL.D., 
Donations to the Library, . . • f ‘ J' 
Index, . y . . . + f ' . . 
Title and Contents. 
