dons. — 1 er mars-3 mai 1875. 53 
A. Geikie. — On the order of succession among the Silurian rocks of Scotland, 
74;— On modem dénudation, 153. 
W. Grossart. — On the upper Coal-Measures of Lanarkshire, 96. 
H.-W. Crosskey et D. Robertson. — The post-tertiary fossiliferous beds of Scot¬ 
land, 113, 321. 
J. Thomson. — Note on the spines of Gyracanthus , 130. 
J. Bennie. — On the surface geology of the district around Glasgow, as indicated 
by the journals of certain bores, 133. 
H.-W. Crosskey. — On Boulder Clay, 149. 
J.-F. Potts. — On the Arran Claystones, 244. 
H. M’ Phail. — On the carboniferous sections of the Levern valley, Renfrewshire, 
254. 
R. Craig. — Sketch of the carboniferous basin of Dalry, Ayr-Shire, 271. 
J. Young. —Notes on the section of strata in the Gilmorehill Quarry and Boulder- 
clay on the site of the new University buildings, Glasgow, 298 ; — From Geology to 
History, 341 ; — On the Carboniferous fossils of the West of Scotland ; their vertical 
range and distribution, with A general catalogue of the fossils and their mode of 
occurence, and an index to the principal localities, by J. Armstrong, Supplément. 
J. Young et R. Craig. — Notes on the occurence of seeds of fresh water Plants 
and arctic Shells, along with the remains of the Mammoth and Reindeer, in beds 
under the Boulder Clay at Kilmaurs, 310. 
J. Burns. — Notes on the post-tertiary deposits of the carse of Falkirk, 367. 
— Id., t. IV, l re partie, 1871. 
W. Cameron. — On the Sutherlandshire Gold Fields, 1. 
R. Craig. — On the section on the Crofthead and Kilmarnock railway, in Cowden 
Glen, Neilston, Renfrewshire, with Remarks on the upper Boulder Clay, 17 ; — On 
the Boulders found in cuttings on the Beith Branch railway, considered in relation 
to their parent rock, with Remarks on the local character of the Boulder Clay, 45. 
H.-W. Crosskey et D. Robertson. — The post-tertiary fossiliferous beds of Scot¬ 
land, 32. 
J. Thomson. — On a specimen of Acanthodes Wardii> Egerton, from the Lanark¬ 
shire Coal-Field, 57 ; — On Ctenacanthus hybcdoïdes, Egerton, 59. 
D. Bell. — On the aspects of Clydesdale during the glacial period, 63. 
— Id-, t. Y, l re partie; 1875. 
R.-L. Jack. — Notes on a Till or Boulder Clay with broken shells, in the lower 
valley of the river Endrick, near Loch Lomond, and its relation to certain other 
glacial deposits, 5. 
Edw. Hull. — On the microscopical structure of red Quartz-porphyry, from the 
Old red sandstone of Logan water, above Lesmahagow, 25. 
H.-W. Crosskey et D. Robertson. — The post-tertiary fossiliferous beds of Scotland. 
XX. Kyles ofBute, 29. 
R. Craig.— On the first appearence of certain fossils in the Carboniferous strata 
around Beith and Dalry, 36. 
J. Young. — On a bed of fine-grained indurated Sandstone, enclosing rolled 
pebbles of Quartzite, interstratified with the Trap of the Campsie Fells, 51. 
R. Brow r n. — Geological notes on the Noursoak peninsula, Disco island, and the 
country in the vicinitv of Disco bay, North Greenland, 55. 
D. Robertson. — Notes on the recent Ostracoda and Foraminifera of the Firth of 
Clyde, with some remarks on the distribution ofMollusca, 112. 
D.-C. Glen. — Notes from the island of Bute. I. On a tract of columnar sandstone, 
