158 Scientific Intelligence. 



II. Miscellaneous Scientific Intelligence. 



1. Physical and Commercial Geography : A study of Certain 

 Controlling Conditions of Commerce; by Herbert Ernest 

 Gre(50ry, Albert Galloway Keller, and Avard Longley 

 Bishop. Pp. vi,469, with 3 plates. Boston, 1910 (Ginn & Co.).— 

 The foregoing work contains the substance of courses given at 

 Yale. In form and style it is a companion volume to Keller's 

 Colonization, and is issued under Professor Keller's editorial 

 supervision. Like that work, its purpose is to interpret rather 

 than to enumerate or describe, and to deal with types rather than 

 with details. 



The subject matter is three-fold and the work is divided into 

 three corresponding parts. Part I (Gregory) discusses the phys- 

 ical environment, giving attention chiefly to those features which 

 clearly affect the life of man, including, however, a brief account 

 of the struggle for existence among plants and animals. Part II 

 (Keller) is entitled " Relation of Man to Natural Conditions," but 

 actually covers both natural and human controls of commerce, 

 closing with a brief consideration of commercial policies. Part 

 III (Bishop), on "The Geogi-aphy of Trade," is devoted to the 

 United States and its possessions, the British Empire, and the 

 German Empire. Within each country, however, the material 

 is assembled by industries rather than by sections : for example, 

 there are separate chapters on the vegetable, animal, mineral, 

 manufacturing, transportation, and merchandizing industries of 

 the United States. At the end there is also a chapter on miscel- 

 laneous products not produced chiefly in the countries already 

 treated. 



In point of method the book is consequently of the fusion type 

 represented by Adams, dealing both with regions and with world 

 industries. It is liberally supplied with cross references and has 

 a good statistical api^endix. It is, further, assumed that the 

 student will have access to some text on physical geography and 

 to an atlas of physical, historical and political geography. 



The work unquestionably marks a distinct advance in the 

 treatment of economic geography. It is intended primarily for 

 college classes and it will assuredly be welcomed by all who 

 believe that economic geography is (or should be) something 

 more than a compend of isolated and unrelated statistics. The 

 book also contains much of interest to the general reader, pro- 

 vided he be capable of consecutive thought. 



EDWAKD VAN DYKE ROBINSON. 

 University of Minnesota. 



2. Soil Fertility and Permanent Agriculture ; by Cyril G. 

 Hopkins. Pp. xxiii, 65.3. Boston (Ginn & Company). — This 

 work is " dedicated to the Association of American Agricultui'al 

 Colleges and Experiment Stations, the rightful guardians of 



