Geology and Natural History. S3 



The work done is largely economic in character, and maps of the 

 coal fields in the southwestern part of the state show the progress 

 which has been made, and what areas still remain to be covered. 

 Bulletin No. X. Surface Water Supply of Virginia ; by G. C. 

 Stevens. Pp. 245 ; 5 pi*. — This bulletin, prepared in coopera- 

 tion with the United States Geological Survey, presents the 

 records accumulated in regard to the prominent river basins of 

 the state. 



8. IVie Physical Geography of Wisconsin ; by Lawrence 

 Martin. Pp. xxii, 549 ; 41 pis., 206 figs. Wisconsin Geological 

 and Natural History Survey. E. A. Birge, Director. Bulletin 

 No. XXXVI. Educational Series No. 4. Madison, 1916.— The 

 surface features of Wisconsin are so varied in character that the 

 systematic presentation of them in the present volume results in a 

 reference book on physical geography, both complete and com- 

 prehensive. The text is prepared with a view to being made as 

 intelligible as possible to the general public, and the illustrations 

 are liberal in number and excellent in character. 



9. Publications of the XI. S. Bureau of Mines / Van. H. Man- 

 ning, Director. — Recent Bulletins from the Bureau of Mines 

 are noted in the following list (see Jan. 1916, p. 149). Numer- 

 ous Technical Papers have also been issued. 



No. 74. Gasoline mine locomotives in relation to safety and 

 health ; bj r O. P. Hood and R. H. Kudlich. With a chapter on 

 methods of analyzing exhaust gases ; by G. A. Burrell. Pp. 83; 

 3 pis., 27 figs. 



No. 86. Some engineering problems of the Panama Canal in 

 their relation to geology and topography ; by D. F. MacDonald. 

 Pp. 86 ; 29 pis., 9 figs. 



No. 89. Economic methods of utilizing Western lignites ; by 

 E. J. Babcock. Pp. 74 ; 5 pis., 5 figs. 



No. 91. Instruments for recording carbon dioxide in flue gases; 

 by J. F. Barkley and S. B. Flagg. Pp. 60 ; 1 pi., 25 figs. 



No. 92. The feldspars of the New England and North Appa- 

 lachian States, by A. S. Watts. Pp. 181; 8 pis., 22 figs. 



No. 93. Miners' nystagmus; by F. L. Hoffman. Pp. 67. 



No. 96. The analysis of permissible explosives; by C. G. 

 Storm. Pp. 88; 3 pis., 7 figs. 



No. 97. Sampling- and analyzing flue gases; by H. Kreisinger 

 and F. K. Ovitz. Pp. 67; 1 pi., 34 figs. 



No. 99. Mine ventilation stoppings, with especial reference to 

 coal mines in Illinois; by R. Y. Williams. Pp. 30; 5 pis., 4 

 figs. 



No. 100. Manufacture and uses of alloy steels ; by II. D. 



HlBBARD. Pp. 77. 



No. 102. The inflammability of Illinois coal dusts ; by J. K. 

 Clement and L. A. Scholl, Jr. Pp. 74 ; 5 pis., 2 figs. 



No. 104. Extraction and recovery of radium, uranium, and 

 vanadium from carnotite; by C. L. Parsons, R. B. Moore, S. C. 



