LASSIFICATION OF THE PUBLICATIONS OF THE UNITED STATES GEOLOGICAL 
SURVEY. 
[Bulletin No. 313.] 
flThe publications of the United States Geological Survey consist of (1) Annual Reports, 
I) Monographs, (3) Professional Papers, (4) Bulletins, (5) Mineral Resources, (6) Water- 
ppply and Irrigation Papers, (7) Topographic Atlas of United States— folios and separate 
leets thereof, (8) Geologic Atlas of United States — folios thereof. The classes nura- 
Ired 2, 7, and 8 are sold at cost of publication; the others are distributed free. A circular 
fving complete lists can be had on application. 
'{Most of the above publications can be obtained or consulted in the following ways: 
|l. A limited number are delivered to the Director of the Survey, from whom they can be 
otained, free of charge (except classes 2, 7, and 8), on application. 
|2. A certain number are delivered to Senators and Representatives in Congress for 
iptribution. 
3. Other copies are deposited with the Superintendent of Documents, Washington, D. C, 
ipm whom they can be had at prices slightly above cost. 
! 4. Copies of all Government publications are furnished to the principal public libraries 
the large cities throughout the United States, where they can be consulted by those 
Iterested. 
The Professional Papers, Bulletins, and Water-Supply Papers treat of a variety of subjects, 
lid the total number issued is large. They have therefore been classified into the following 
Iries: A, Economic geology; B, Descriptive geology; C, Systematic geology and paleon- 
logy; D, Petrography and mineralogy; E, Chemistry and physics; F, Geography; G, Mis- 
llaneous; H, Forestry; I, Irrigation; J, Water storage; K, Pumping water; L, Quality of 
ater; M, General hydrographic investigations; N, Water power; O, Underground waters : ; 
, Hydrographic progress reports ; Q, Fuels; R, Structural materials. This paper is the 
inety-third in Series A, the complete list of which follows (PP= Professional Paper; 
^Bulletin; WS= Water-Supply Paper): 
SERIES A, ECONOMIC GEOLOGY. 
21. Lignites of Great Sioux Reservation: Report on region between Grand and Moreau rivers, 
Dakota, by Bailey Willis. 1885. 16 pp., 5 pis. (Out of stock.) 
46. Nature and origin of deposits of phosphate of lime, by R. A. F. Penrose, jr., with introduction 
by N. S. Shaler. 1888. 143 pp. (Out of stock.) 
65. Stratigraphy of the bituminous coal field of Pennsylvania, Ohio, and West Virginia, by I. C. 
White. 1891. 212 pp., 11 pis. (Out of stock.) 
111. Geology of Big Stone Gap coal field of Virginia and Kentucky, by M. R. Campbell. 1893. 106 
pp., 6 pis. (Out of stock.) 
132. The disseminated lead ores of southeastern Missouri, by Arthur Winslow. 1896. 31 pp. (Out 
of stock. ) 
138. Artesian-well prospects in Atlantic Coastal Plain region, by N. H. Darton. 1896. 228 pp., 19 pis. 
139. Geology of Castle Mountain mining district, Montana, by W. H. Weed and L. V. Pirsson. 1896. 
164 pp., 17 pis. 
143. Bibliography of clays and the ceramic arts, by J. C. Branner. 1896. 114 pp. 
164. Reconnaissance on the Rio Grande coal fields of Texas, by T. W. Vaughan, including a report 
on igneous rocks from the San Carlos coal field, by E. C. E. Lord. 1900. 100 pp., 11 pis. (Out 
of stock.) 
178. El Paso tin deposits, by W. H. Weed. 1901. 15 pp., 1 pi. 
I 180. Occurrence and distribution of corundum in United States, by J. H. Pratt. 1901. 98 pp., 14 pis. 
(Out of stock; see No. 269. ) 
182. A report on the economic geology of the Silverton quadrangle, Colorado, by F. L. Ransome. 
1901. 266 pp., 16 pis. (Out of stock.) 
I 
