REVIEWS 363 



fishes and are a valuable contribution which will be of use not only to 

 the citizens of Kansas, but to all students of fossil fish. 



S. W. 



Profiles of Rivers in the United States. By Henry Gannett. 

 Water-Supply and Irrigation Paper No. 44, United States 

 Geological Survey. 



This interesting and valuable publication embodies within a hun- 

 dred pages the leading facts of about one hundred and fifty of the 

 most important rivers and streams of the country, noting their length, 

 drainage area, the location of water power in their courses, their 

 peculiarities of flow, and the nature of their drainage basins. 



The rivers selected are those which are the largest in size and bear 

 most directly upon the varied interests of the country, such as the 

 Connecticut, Hudson, Susquehanna, Ohio, Potomac, Mississippi, Mis- 

 souri, Platte, Colorado, Sacramento, Columbia, and others. The 

 figures for the tables showing height above sea level and fall per mile 

 were collected from various sources; some were obtained from the 

 report of the chief engineer of the United States army, some from rail- 

 road companies when their lines cross streams, and some from the 

 Atlas sheets of the United States Geological Survey. 



In the case of such rivers as the Connecticut, Susquehanna, Missis- 

 sippi, and Colorado, where the surrounding country is, in part or whole, 

 of peculiar physiographic interest, very excellent and vivid descriptions 

 of its leading physical characteristics are given. The pamphlet is the 

 result of much careful work, and is the first attempt to collect and 



compile this information in its present form. 



G. B. H. 



Yearbook of the United States Department of Agriculture for igoo. 

 Washington, 1901. 

 The portions of this important volume of most interest to geolo- 

 gists are those which relate to soil investigation and the special papers 

 on "Mountain Roads," by James W. Abbott: "The Selection of 

 Materials for Macadam Roads," by Logan Waller Page ; "Objects and 

 Methods of Investigating Certain Physical Properties of Soils," by 

 Lyman J. Briggs ; and " Practical Irrigation," by C. T. Johnston and 



J. U. Stannard. 



C. 



