Geology. 77 



No. 427. Bibliography and Index of the publications of the 

 U. S. Geological Survey relating to ground water; by Oscar E. 

 Meinzer. Pp. 169, with map in pocket (plate I). 



2. Publications of the TJ. S. Bureau of Mines; Van H. Man- 

 ning, Director. — Recent publications of the Bureau of Mines are 

 as follows (see earlier, vol. 47, p. 143) : 



Bulletins: No. 144. Report of a joint committee appointed 

 from the Bureau of Mines and the U. S. Geological Survey by 

 the Secretary of the Interior to study the gold situation. Pp. 84, 

 1 pi., 3 figs. 



No. 154. Mining and milling of lead and zinc ores in the Mis- 

 souri-Kansas-Oklahoma zinc district; by C. A. Wright. Pp. 

 134, 17 pis,, 13 figs. 



No. 161. California mining statutes annotated; by J. W. 

 Thompson. Pp. 312. 



No. 166. A preliminary report on the mining districts of 

 Idaho; by Thomas Varley, C. A. ."Wright, E. K. Soper, and 

 D. C. Livingston. Pp. 112, 3 pis., 3 figs. 



No. 169. Illinois mining statutes annotated ; by J. W. Thomp- 

 son. Pp. 594. 



No. 170. Extinguishing and preventing oil and gas fires; by 

 C. P. Bowie. Pp. 48, 19 pis., 4 figs. 



No. 172. Abstracts of current decisions on mines and mining, 

 reported from January to May, 1918; by J. W. Thompson. 

 Pp. 138. 



No. 174. Abstracts of current decisions on mines and mining 

 reported from May to September, 1918; by J. W. Thompson. 

 Pp. 138. 



No. 177. The decline and ultimate production of oil wells with 

 notes on the valuation of oil properties; by C. H. Beal. Pp. 84, 

 4 pis., 80 figs. 



No. 179. Abstracts of current decisions on mines and mining, 

 reported from September to December, 1918 ; by J. W. Thomp- 

 son. Pp. 166. 



Also numerous Technical Papers. 



3. Iowa Geological Survey; George F. Kay, State Geologist. 

 Bulletin No. 6. The Raptorial Bird of Iowa; by Bert H. 

 Bailey. Pp. 238, 93 figs. Des Moines, 1918.— Dr. Bailey, the 

 author of this report, died on June 22, 1917, before it was 

 entirely completed; fortunately, however, his student and 

 co-worker, Miss Clementina Spencer, has been able to edit the 

 work and make it complete for the press. This account of the 

 hawks and owls of the State will be found especially valuable by 

 the farmers and is only one of several practical reports which the 

 Survey has issued (see also vol. 47, p. 239). 



4. Virginia Geological Survey; Thomas L. Watson, Director. 

 Bulletin XVIII. The geology and coal resources of Buchanan 

 County; by Henry Hinds. In cooperation with the U. S. 



