publications: bulletins. 143 
207. The action of ammonium chloride upon silicates, by F. W. Clarke and George 
Steiger. 1902. 8°. 57 pp. (Out of stock.) 
208. Descriptive geology of Nevada south of the fortieth parallel and adjacent por- 
tions of California, by J. E, Spurr. 1903. 8°. 229 pp., 8 pis. 
209. The geology of Ascutney Mountain, Vermont, by R. A. Daly. 1903. 8°. 
122 pp., 7 pis. 
210. The correlation of geological faunas: a contribution to Devonian paleontology, 
by H. S. Williams. 1903. 8°. 147 pp., 1 pi. 
211. Stratigraphy and paleontology of Upper Carboniferous rocks of Kansas section, 
by G. I. Adams, G. H. Girty, and David White. 1903. 8°. 123 pp., 4 pis. 
212. Oil fields of the Texas-Louisiana Gulf Coastal Plain, by C. W. Hayes and 
William Kennedy. 1903. 8°. 174 pp., 11 pis. (Out of stock.) 
213. Contributions to economic geology, 1902; S. F. Emmons and C. W. Hayes, 
geologists in charge. 1903. 8°. 449 pp. 
214. Geographic tables and formulas, compiled by S. S. Gannett. 1903. 284 pp. 
(Out of stock.) 
215. Catalogue and index of the publications of the United States Geological Survey, 
1901 to 1903, by P. C. Warman. 1903. 8°. 234 pp. 
216. Results of primary triangulation and primary traverse, fiscal year 1902-3, by 
S. S. Gannett. 1903. 8°. 222 pp., 1 pi. 
217. Notes on the geology of southwestern Idaho and southwestern Oregon, by I. C. 
Russell. 1903. 8°. 83 pp., 18 pis. 
218. The coal resources of the Yukon, Alaska, by A. J. Collier. 1903. 8°. 71 pp., 6 pis. 
219. The ore deposits of Tonopah, Nevada (preliminary report), by J. E. Spurr. 
1903. 8°. 31 pp., 1 pi. 
220. Mineral analyses from the laboratories of the United States Geological Survey, 
H 1880 to 1903, tabulated by F. W. Clarke, chief chemist. 1903. 8°. 119 pp. 
221. Bibliography and index of North American geology, paleontology, petrology, 
and mineralogy for the year 1902, by F. B. Weeks. 1903. 8°. 200 pp. 
222. Catalogue and index of the publications of the Hayden, King, Powell, and 
Wheeler surveys, by L. F. Schmeckebier. 1904. 8°. 208 pp. 
In preparation: 
223. Gypsum deposits in the United States, by G. I. Adams. 
224. A gazetteer of Texas (second edition), by Henry Gannett. 
225. Contributions to economic geology, 1903; S. F. Emmons and C. W. Hayes, 
geologists in charge. 
226. Boundaries of the United States and of the several States and Territories, 
with an outline of the history of all important changes of territory (third 
edition), by Henry Gannett. 
227. The United States Geological Survey; its origin, development, organization, 
and operations. 
228. Analyses of rocks from the laboratory of the United States Geological 
Survey, 1880-1903, by F. W. Clarke. 
229. The tin deposits of the York region, Alaska, by A. J. Collier. 
Paleontology of the Malone Jurassic formation of Texas, by F. W. Gragin, 
with stratigraphic notes on Malone Mountain and the surrounding region 
near Sierra Blanca, Texas, by T. W. Stanton. 
— Miocene Foraminifera of the Monterey shale, California, with a few species 
from the Tejon formation, by R. M. Bagg, jr. 
— Taconic physiography, by T. N. Dale. 
Gazetteer of Delaware, by Henry Gannett. 
Gazetteer of Maryland, by Henry Gannett. 
Gazetteer of Virginia, by Henry Gannett. 
— Gazetteer of West Virginia, by Henry Gannett. 
— The Porcupine placer district, Alaska, by C. W. Wright 
