SERIKS LIST. Ill 
!'I' 42. Geology of the Toiiopali mining district, Nevada, by J. K. Spurr. 1905. 2'J5 pp., 24 pis. 
!'l' 43. The copper deposits of Clifton-Morenci, Arizona, by Waldemar Lindgren. 1905. 375 pp., 25 pis, 
i: 264. Record of deep well drilling for 1904, by M. L. Fuller, E. F. Lines, and A. C. Veatch. 1905. 
106 pp. 
H 26.'). Geology of the Boulder district, Colorado, by N. M. Fenneman. 1905. 101 pp., 5 pis. 
H 267. Tlie copper deposits of Mis.souri, by H. Foster Bain and E. O. Ulrich. 190.'t. 52 pp., 1 pi. 
1) 269. Corundum and its occurence and distribution in the United States (a revised and enlarged 
edition of Bulletin No. 180), by J. H. Pratt. 1906. — pp., 18 pis. 
Correspondence should be addressed to 
The Director, 
United States Geological Survey, 
\Va.shington, D. C. 
January, 1906. 
o 
