Reviews 



SUMMARY OF THE LITERATURE OF NORTH AMERICAN 

 PLEISTOCENE GEOLOGY, igoi AND 1902. 



Frank Leveret t. 



In the two years covered by this summary there have been pub- 

 lished in the neighborhood of 150 papers and reports (a few of which 

 the reviewer has been unable to obtain), which either wholly or in part 

 discuss features or problems of North American Pleistocene geology. 

 About forty papers pertain to the Dominion of Canada, and half as 

 many to Alaska and the Cordilleran part of the United States, while 

 nearly every state which falls within the limits of glaciation has had 

 notice in from one to fifteen papers. Iowa appears to lead the states in 

 number of papers published, though New York is but little behind, 

 and Massachusetts, Michigan, Indiana, and Wisconsin have a good 

 showing. New Jersey has been favored by the appearance of a volumi- 

 nous report on glacial geology, while Ohio and parts of neighboring 

 states are embraced in a monograph by the United States Geological 

 Survey dealing entirely with the glacial formations and drainage 

 features. Kansas and Minnesota have had a little notoriety in con- 

 nection with the question of glacial man. A large number of papers 

 have been brief contributions to magazines or to the bulletins, trans- 

 actions, and proceedings of scientific societies or academies which deal 

 usually with a small territory or a single subject. The official reports 

 published by the state, United States, and Canadian surveys which 

 contain matter on Pleistocene geology also in most cases give a large 

 share of attention to the geology of the older rock formations. In 

 such cases this review is confined to the Pleistocene portion. Inas- 

 much as each area has to some extent problems of its own, it has 

 seemed advisable to group the papers areally. There is also a group 

 composed of papers of a general nature. 



THE CORDILLERAN REGION IN CANADA. 



Brock, R. W. The Boundary Creek District, British Columbia. Geol. Surv. 

 Canada, Summary Rept. for 1901, pp. 49-67, 1902. 



The area examined was confined to the Grand Forks and Kettle River mining 

 divisions of the boundary district. Glaciation is discussed mainly on p. 57. None of 



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