Reports and Proceedings. 87 
glacial débris, contrasting their characters with those of the patches 
of Boulder-clay occurring in the neighbourhood. 
Many indications of glaciers are shown to be much obscured by 
the prevalence of peat in the district; but, in addition to the 
moraine-matter, smoothed surfaces and roches moutonnées are 
occasionally seen. 
‘On the Formation and Preservation of Lakes by Ice-action.’ 
By Thomas Belt, Esq. Communicated by Prof. Ramsay, M.A., 
F.R.S., F.G.S. 
During a residence of two years in the province of Nova Scotia, 
the author observed the remarkable number of lakes, great and small, 
occurring there, sometimes in connected chains and sometimes on the 
sides and tops of hills. The lake-basins are stated to be, chiefly, in 
extremely hard quartzites and metamorphosed schists, irregularly 
studded with masses of Boulder-clay, beneath which are seen 
scratches, grooves, &c., that have been produced by ice-action. ‘The 
author then describes all the phenomena in detail, and gives a résumé 
of the theory of their glacial origin, as propounded by Professor 
Ramsay, coming to the conclusion that in this way only can the facts 
be consistently explained. 
8. ‘A Sketch of the Principal Geological Features of Hobart, 
Tasmania.’ By §. H. Wintle, Esq. Communicated by Sir R. I. 
Murchison, K.C.B., F.R.S., F.G.S. 
The hills upon which Hobart is built, as well as those in the 
vicinity, are mostly composed of New (?) Red Sandstone, capped 
with greenstone of a variable composition and of great thickness in 
some places. 
The Carboniferous Limestone (?) is stated to be very extensively 
developed throughout the island, and to be very fossiliferous; the 
author describes its lithological characters, as well as those of the 
Devonian rocks and the Silurian slates of Mount Wellington, which 
last, as yet, have proved unfossiliferous ; but he states that Mr. 
Gould has found a Calymene Blumenbachii in similar rocks in the 
interior. He then, after describing the Coal-formation of the island, 
and remarking upon the anthracitic nature of the coal, passes on to 
the ‘ Boulder-drift’ (?), which consists of immense boulders, princi- 
pally of felspathic trap and greenstone, imbedded in stiff clay in some 
parts, and in loam in others. ‘The boulders are also associated with 
fragments of New Red Sandstone and nodular masses of Dolomite. 
The author concludes by describing the mode of occurrence, in 
the Valley of the Derwent, of a marine deposit, which he considers 
of Post-pliocene age, and which is found at an elevation of upwards 
of 100 ft. above the sea-level, and at a distance of from 50 to 100 
yards from the water’s edge; thus showing that the Valley of the 
Derwent and the neighbouring country had recently been upheaved. 
The next meeting of the society will be held on November 9, 1864. 
Tue First Summer Meeting of the WarwicksHIrE NATURALISTS’ 
Freip Crus was held at Broadway, in Worcestershire, on May the 
24th. Ascending the hill, the attention of the geologists was 
