25 



recent of the primitive class. Quartz-rock prevails on the north of 

 Lake Huron for more than 70 miles ; and the islands in that part of 

 the lake consist of fine-grained red and gray granite, with quartz-rock 

 and trap : and vast masses of granite alternate with greenstone for a 

 space of 300 miles on the north shore of Lake Superior. Of the 

 slaty primitive rocks, the most abundant is gneiss ; which constitutes 

 some of theprincipal heights, and forms the mountains N.E. of Que- 

 bec, and lines the northern shore of the St. Lawrence. Cape Tour- 

 ment, 1800 feet in height, consists of this rock ; so also the outlet of 

 Lake Ontario, and it skirts the north shore of Lake Simcoe and 

 Huron, and occupies a considerable tract on the north of Lake 

 Nipissing, and at the upper part of the river Ottawa. 



The author supposes that the numerous boulders of Labrador fel- 

 spar on the shores of Lake Huron, on the S.W. of Lake Simcoe, and 

 even so far eastward as the outlet of Lake Ontario, have been de- 

 rived from a tract about 60 miles west of Penetanegeneshene, where 

 the gneiss passes into Labrador felspar, traversed by veins of pyroxene 

 and garnet ; and this he supposes to be the southern verge of a vast 

 tract of the same composition. Magnetic iron ore is associated with 

 syenite on the north of Ontario. Greenstone occurs in veins in Lower 

 Canada : near Lake Huron it supports intermediary limestone ; and 

 it is found at Gros Cap in Lake Superior, and forms numerous dykes 

 of great size in the north shore of that lake. A mass composed of 

 a mixture of augite and hornblende occurs near Montreal, constitu- 

 ting Montreal Hill, 650 feet high, from which numerous dykes cut 

 through the shelly deposits at the base of the hill. 



The primitive limestone appears in every part of the St. Lawrence 

 Valley to belong to one and the same epoch, and occupies a conside- 

 rable space on the south-western frontier of Lower Canada, near Lake 

 Champlain. In Upper Canada, the upper part of the river Ottawa 

 has its course through this rock, and considerable masses of it oc- 

 cur in Crew Lake : the same white marble is seen at Lake Chat, and 

 on the left of Lake Chaucliere, on the river Calumet and on the river 

 Gauanoque, about 18 miles below Kingston; it is blended with ser- 

 pentine. 



June 15. — The Hon. William Francis Spencer Ponsonby, of St. 

 James's Square, London ; William Terry, Esq. of High Wycombe, 

 and Duke Street, St. James's Square ; the Rev. Richard Gwatkin, 

 B.D. Fellow and Tutor of St. John's College, Cambridge ; the Rev. 

 George Peacock, M.A. F.R.S. Fellow and Tutor of Trinity College, 

 Cambridge ; the Rev. Julius Charles Hare, M.A. Fellow of Trinity 

 College, Cambridge ; the Rev. John Hutton Fisher, M.A. Fellow of 

 Trinity College, Cambridge; the Rev. Richard Sheepshanks, M.A. 

 Member of the Astronomical Society, and Fellow of Trinity College, 

 Cambridge ; and Major General Sir John Malcolm, G.C.B. F.R.S. 

 &c, — were elected Fellows of the Society. 



A notice was read, " On some fossil bones of the elephant and 

 other animals, found near Salisbury :" — by Charles Lyell, Esq. 

 F.R.S. F.G.S. &c. 



Bones and teeth of the elephant, rhinoceros, and ox, have been 



