382 REVIEWS 



Annual Report of the Geological Survey of Western Australia for 

 the Year iqoq. By A. Gibb Maitland, Government Geolo- 

 gist. Pp. 32, maps 4, and figs. 3. 

 The report contains a summary of the work done and the results 

 obtained by each of the fifteen officers employed by the survey. Three 

 bulletins were issued by the survey during the year 1909: Bull. 33, 

 "Geological Investigation in the Country Lying between 21 deg. 30 

 min. and 25 deg. 30 min. S. Lat. and 113 deg. 30 min. and 118 deg. 

 30 min. E. Long., Embracing Parts of the Gascoyne, Ashburton, and 

 West Pilbara Goldfields"; Bull. 35, "Geological Report upon the Gold 

 and Copper Deposits of the Philips River Goldfield"; Bull. 37, "The 

 Geological Features of the Country Lying along the Route of the Pro- 

 posed Transcontinental Railway in Western Australia." 



E. R. L. 



"The Dakota-Permian Contact in Kansas." By F. C. Greene. 



Kansas University Science Bulletin, Vol. V, No. 1 (October, 

 1909), pp. 1-8. 

 The paper presents a summary of the relations of the Permian and 

 the Cretaceous in Kansas, north of the Smoky Hill River. 



E. R. L. 



Annual Report on the Mineral Production of Virginia during the 



Calendar Year iqo8. Virginia Geological Survey Bull. No. 



I- A. By Thomas Leonard Watson. Pp. 138. 



Virginia possesses an abundance and variety of mineral materials, 



about forty varieties of which are now exploited, many of them on a 



large scale. A table of the mineral production in 1908 shows a total 



value of nearly $18,000,000, of which iron makes up over $6,000, oco. 



Under the heading Preliminary Generalities, the author presents a 



brief and interesting review of the physiography and general geology 



of the state, including several generalized sections from various parts 



of the state. The parts devoted to the various mineral deposits are 



chiefly descriptive and statistical. A valuable feature of the report 



is a series of maps showing the distribution in the state of a number of 



the most important of the mineral deposits. 



E. R. L. 



