COiNTENTS. 



SESSION CXVII. 



PAGE 



Opening Address, by Professor Dun«, D.D., F.R.S.E., Vice-President. . 391 



An Ornithological Visit to the Ascrib Islands, Loch Snizort, Skyo, by 



John Swinburne, Esq. , . . . . . .02 



On the Structure of the Graafian Follicle in Diclelphys^hy Frank E, 

 Beddard, Esq., M.A., F.KS.E., Prosector of the Zoological, Society, 

 and Lecturer on Biology at Guy's Hospital, . . . .407 



Notes on Carboniferous SelacMi, by Dr R. H. Traquair, F.R.S., F.G.S., 412 



Further Notes on Carboniferous Selachii, by Dr R. H. Traquair, F.R.S., 



^ F.G.S., . . . . . . . .421 



Notes on a Visit to Fernando Noronha, by George Ramage, Esq. 



[Plate XIX.], 426 



On a New Eurypterid from the Upper Coal-measures of Radstock, Somer- 

 setshire, by B. N. Peach, Esq., A.R.S.M., F.R.S.E. [Plate XX.], 438 



Synthetic Summary of the Influence of the Environment upon the 



Organism, by J. Arthur Thomson, Esq., M.A., F.R.S.E., . 446 



On the Prevalence of Eurypterid Remains in the Carboniferous Shales of 

 Scotland, by James Bennie, Esq., of the Geological Survey of 

 Scotland, ........ 499 



On the Fructification of two Coal-measure Ferns, by Robert Kidston,* 



F.R.S.E., F.G.S. [Plate XXL], 510 



On the Fructification and Affinities oi Archceopteris hibernica, Forbes, sp,, 



by Robert Kidston, F.R.S.E., F.G.S. . . . .516 



Notes on the Equipment of the Research Laboratory of the Royal College 

 of Physicians, Edinburgh, by G. Sims Woodhead, Esq., M.D., 

 F.R.C.P.Ed., F.R.S.E., . . . . . .521 



The Summer Birds of Shetland, with Notes on their Distribution, Nesting, 



and Numbers, by Harold Raeburn, Esq. , . . . . 542 



