REVIEWS 



Source Book for the Economic Geography of North America. By 

 Charles C. Colby. TheUniversity of Chicago Press. 192 1. 



Even a brief study of this volume shows that it will serve a good 

 purpose, for it is a step — and an important one — in the organization of 

 material which is scattered so widely that its utilization is out of the 

 question for those not in touch with good libraries, and sometimes 

 discouraging to those who are. Every student of college grade who 

 studies the geography of North America will find the book of great service, 

 if not indispensable. The teacher of such students should welcome the 

 volume, not as a textbook, but as the basis for a course on the economic 

 geography of the continent. He must not expect that the book is to do 

 away with his own work, but he may expect it to give him many sugges- 

 tions as to methods of procedure and as to sources of material. Intelligent 

 use of the book will make it serviceable for courses of various grades of 

 advancement, and even for courses with somewhat diverse aims. A good 

 feature of the book is that it gives publicity to much excellent material 

 published in government reports and largely lost to view by many who 

 could utilize it to advantage. 



One cannot help wishing that the book were somewhat fuller, and 

 that a well-annotated bibliography had been added. This may come 

 with future editions. 



R. D. S. 



The Malagash Salt Deposit, Cumberland County, Nova Scotia. By 

 A. O. Hayes. Ottawa: Canadian Geological Survey, Memoir 

 121, 1920. Pp. 24, fig. I, maps 2. 



Mining development has proved the presence of a sufficient quantity 

 of pure salt in this area for the establishment of an important industry. 

 The deposit is favorably located with respect to the supply of raw 

 material and fuel, and has exceptional advantages for transportation 

 either by rail or water. 



Outcrops are not very abundant in the area, but sediments belonging 

 to the Mississippian, early Pennsylvanian, and late Pennsylvanian or 

 early Permian are identified, and are separated by two marked uncon- 



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