236 liecieivs — Geological Survey of Canada. 



Tyrrell, his predecessor, being used to make the descriptions of the 

 formations more complete. The first part of the report is occupied 

 with a detailed account of the pliysical geography of the area 

 surveyed. A table is given correlating the formations of Manitoba 

 and Minnesota, and a long list of fossils from the Cambro-Silurian 

 (Ordovician) of Manitoba, including those of the Trenton and Black 

 River of Lake Winnipeg compiled from the " Palasozoic Fossils," 

 vol. iii, of Dr. J. F. Whiteaves. 



The next report (G), by Mr. J. Burr Tyrrell, "On the east shore 

 of Lake Winnipeg and adjacent parts of Manitoba and Keewatin," 

 is compiled by Mr. Duwling from Mr. Tyrrell's notes and surveys. 

 It takes the shape of a description of the lake, starting from the 

 northern end and going southward. A carefully prepared topo- 

 graphical and orographical account serves as an introduction ; the 

 geological features follow. The rocks are Archaean, the great 

 preponderance of gneisses and granites of the Laurentian being the 

 chief feature ; there are also local occurrences of Huronian green- 

 stones and schists. A coloured geological map of the lake on 

 a scale of 8 miles to 1 inch accompanies this report. 



Dr. R. W. Ells contributes a report (J) on the geology of the 

 area comprised in the north-west quarter-sheet of the '•' Eastern 

 Townships " map, or Three Rivers sheet, of the Province of Quebec. 

 The Paleozoic formations observed are the Potsdam, Calciferous, 

 Qhixzy, Black River, and Trenton to the north of the St. Lawrence 

 River, and the Utica, Hudson River, and an outlier of the Medina 

 in the small area to the south of the St. Lawrence included in the 

 tract of countiy surveyed. Full lists of the fossils obtained are 

 given, their identification having been entrusted to the competent 

 hands of Dr. H. M. Ami. Some crystalline rocks of the " Grenville 

 Series " also occur, with large areas of anorthosite, red granite, 

 augen-gneiss, and masses of green pyroxenic diabase. The map 

 accompanying this report is drawn to a scale of 4 miles to 1 inch. 



Mr. A. P. Low's report (L) contains an account of his exploration 

 of part of the south shore of Hudson Strait, and of Ungava Bay. 

 These distant expeditions are not without their elements of danger 

 and adventure, and the narrative of the voyage in a sealing steamer 

 from Halifax to Hudson Bay via the Straits of Belle Isle, and the 

 subsequent incidents of the coasting voyage in a small yacht along 

 the shore of Hudson Strait, serve fully to impress this upon the 

 reader. Making their way slowly through pack ice, and with 

 many delays, the voyagers reached Hudson Bay on the 12th July, 

 having left port on the 3rd June. Leaving the steamer in King- 

 George Sound they took to their small yacht. The route lay along 

 the coast from the Sound to the head of Ungava Bay. The nature 

 of the country, as far as could be seen from the coast and from 

 some of the streams, is described as high, rocky, and barren, and this 

 description is fully realized in the illustrations (from photographs) 

 which accompany the report. 



The long line of coast explored in the limited time at the disposal 

 of the expedition admitted only of a hurried examination each day. 



