Notes, Reviews and Comments. 25 



bird life of that district many important observations being 

 recorded. A study was also made of the conditions which are 

 presented for improving the bad lands of this district by irriga- 

 tion, and this will probably, before long, prove beneficial. 



In Manitoba and Keewatin, north-east of Lake Winnipeg, 

 investigations were continued by Mr. Tyrrell into the character 

 and structure of the Archaean gneisses, etc., and of the overlying 

 Pleistocene clays andsands,and the existenceof considerable areas 

 of good land suitable for agricultural pursuits was ascertained. 



In Ontario, four parties were engaged at somewhat widely 

 separated points. In the Rainy Lake district the question of 

 the gold deposits was carefully studied by Mr. Mclnnes, and 

 the indications observed point to the carrying on of very exten- 

 sive mining operations in this area at no very distant date. 

 Further east, near Lake Temiscaming, the relations of the 

 Huronian and Laurentian were ascertained by Mr. Barlow 

 during the first part of the season, considerable importance per- 

 taining to this area from the presence there of the Huronian 

 nickel-bearing rocks of Sudbury, while the latter half of the 

 season was devoted to the mapping of the old rocks in the 

 County of Haliburton, to the south of the Ottawa and Parry 

 Sound railway. 



In eastern Ontario work was carried on south of the 

 Ottawa River, between Pembroke and Arn prior by Dr. Ells, 

 where the separation of the Grenville series of the Laurentian 

 from the underlying or fundamental gneisses was accomplished 

 over a very considera.ble area. The study of the relations of 

 the schists and other rocks of the Hastings series to the crystal- 

 line limestone and the gneiss of the Laurentian was also taken 

 up and satisfactory progress made. The Hastings series is an 

 important one, economically considered, since it embraces the 

 principal gold deposits of the Macloc and Marmora districts, and 

 many of the iron ores along the Kingston and Pembroke rail- 

 way occur in the rocks of this division. Considerable areas of 

 the fossiliferous Cambro-Silurian rocks are also found in this 

 portion of the province, resting upon the underlying gneiss and 

 limestone. 



