[goi] 



Reviews. 



59 



Potsdam, 300-700 feet. 



Calciferous, 300 feet about. 



Chazy, 175 feet about. 



Black River, 38-100 feet. 



Trenton, 600 feet. 



Utica, 100 feet. 



Lorraine, ?. 



Medina, 75 feet. 

 Descriptions of the trend of some ancient channels of the 

 Ottawa are given as revealed by borings and the general 

 topography of the area. 



Details in regard to the position and extent of the main lines 

 of dislocation are given and the fact noted that both vertical dis- 

 placements and horizontal throws are represented. 



It is believed by the author that the question of the occur- 

 rence of natural gas or oil in the Ottawa basin has never yet been 

 actually tested. The borings already made have been placed in 

 locations quite unfavourable for this purpose or in the case of those 

 to the south of the Ottawa river have penetrated the rock at but 

 few points. Gas has been found in considerable quantity in several 

 of the deep borings which have been made in the clay along the 

 ancient channel of the Ottawa. The location of favourable anti- 

 clinal folds is rendered very difficult owing to the thick overlying 

 mantle of drift. 



A. E. B. 



Synopsis of the Geology of Canada, Being a Summary of the 

 Principal Terms Employed in Canadian Geological Nomen- 

 clature. By Henry M. Ami, M.A., D. Sc, F.G.S. (Trans. 

 R. S. C, Sec. IV, igoo pp. 187-225.) 



This extract from the transactions of the Royal Society, with 

 its hundred names newly coined to mystify the reader and to re- 

 place others well known and more appropriate, justifies an obser- 

 vation made by a Committee ot the House of Commons that such 

 purely scientific researches seem devoted rather to upsetting 

 theories of antecedent scientists, than to the discovery of new 

 principles or the addition of new information. The author 

 divides the 3,616,980 square miles of British North America into 



