258 REVIEWS 



A Dictionary of Altitudes in the United States, Fourth Edition. 

 Compiled by Henry Gannett. (Bulletin No. 274, U. S. Geo- 

 logical Survey, 1906.) 



The material of previous editions has been revised, and many new data 

 have been added. . E, W. S. 



Twenty-sixth Annual Report of the Director of the United States Geo- 

 logical Survey, 1904-5. Pp. 322, 25 plates (maps), i figure. 



A classified f eport of the work of the United States Geological Survey 

 for the year. E. W. S. 



The Economics of Mining. By T. A. Rickard. Pp. 421 ; cloth. 



This volume is composed of nearly a hundred editorials and short 

 articles which have appeared since January, 1 903 , in the Engineering and 

 Mining Journal. E. W. S. 



Mesozoic Section on Cook Inlet and Alaska Peninsula. By T. W. 

 Stanton and G. C. Martin. (Bulletin of the Geological Society 

 of America, Vol. XVI [June, 1905].) Pp. 391-410, Plates 67-70. 



Upper Trias, Lower, Middle and Upper Jurassic, Upper Cretaceous, 

 and probably Dower Cretaceous are found to be represented, and, except 

 the Middle and Upper Jurassic, are usually, at least, separated by uncon- 

 formities. Nearly 10,000 feet of strata are referred to the Jurassic. The 

 fauna at this period is also well developed, and is Russian or boreal in type. 



E. W. S. 



