72 Scientific Intelligence. 



7. Report on the Doobaunt, Kazan and Ferguson Rivers and 

 the Northioest Coast of Hudson Bay, etc.; by J. B. Tyrrell. 

 Geo!. Surv. of Canada, Ann. Rept. 1896, vol. iv, part F, pp. 

 1-218, plates i-xi and three maps, 1897. — This report gives 

 account of explorations carried on during the years 1893 and 1894, 

 in a region lying north of the 59th parallel of latitude and west 

 of Hudson Bay, covering about 200,000 square miles. It contains 

 much valuable geological information ; a study of the movement 

 of glaciers over the region ; appendices on Chippewyan and 

 inland Eskimos vocabularies; and a third one on plants collected 

 by J. W. Tyrrell. h. s. w. 



8. Rivers of North America, a reading lesson for students of 

 geography and geology ; by Israel C. Russell; pp. 1-327, 

 'figures 1-23, plates i-xvii. New York, 1898 (G. P. Putnam's 

 Sons). — Prof. Russell's "Rivers of North America" is a fit com- 

 panion for " Lakes of North America," " Glaciers of North 

 America" and "Volcanoes of North America" by the same 

 author. It is a delightful " reading lesson " for any one interested 

 in geography or geology and will make brooks and rivers more 

 attractive to the lover of nature. The characteristics of stream 

 action are presented clearly in plain language without detailed 

 discussion of laws or theories, and each point is illustrated from 

 American rivers. The chapters on " Stream Development " and 

 " The Life History of a River " trace the stream's history from 

 youth to old age, tell of its birth, its efforts to adjust itself to its 

 environment and the accidents which it may suffer. The river is 

 made to appear as a thing of life. Students who have searched 

 through manuals, geological reports and scattered essays for facts 

 and laws of stream action will be thankful for the discussion of 

 these subjects here given. h. e. g. 



9. Earth Sculpture or the origin of land forms ; by James 

 Geikie; pp. 1-397, pi. i-ii, figs. 1-89. New York, 1898 (G. P. 

 Putnam's Sons). — This volume is the latest number of The Science 

 Series published by the Putnams. The book treats first of the 

 agents of denudation and the resulting land forms in regions of 

 horizontal, inclined, folded and displaced strata. After this the 

 modifying effects of igneous, glacial and reolian action on surface 

 features are discussed. " Coaet Lines " and " Classifications of 

 Land Forms" are very useful chapters. The book is addressed 

 to the average student who may desire some general knowledge 

 of the development of land forms, and we know of no other Eng- 

 lish work which gives a general account of the whole subject. 

 To American readers some of the terms and descriptions of 

 foreign localities will seem unfamiliar and the glossary in the 

 Appendix will be needed. This is particularly true of the divisions 

 of the Geological Time Scale. 



As an introductory treatise Prof. Geikie's book is very welcome 

 and students of nature who have mastered this will read Sir A. 

 Geikie's "Scenery and Geology of Scotland," Lubbock's "Scenery 

 of Switzerland," Powell's " Canyons of the Colorado " and other 

 physiographic classics with added interest. h. e. g. 



