BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1906-1907. 179 
Sullivan, E. C. 
2324. The secondary enrichment of copper-iron sulphides. — Am. Inst. Min. 
Eng., Bi-Mo. Bull. no. 13, pp. 143-145, January, 1907. 
2325. The interaction between minerals and water solutions with special 
reference to geologic phenomena. — U. S. Geol. Survey, Bull. no. 312, 69 pp., 1907. 
Surface, G. T. 
2326. Physiography of Virginia. — Am. Geog. Soc, Bull., vol. 38, no. 12, pp. 
741-753, December, 1906. 
Describes the geologic history and the physiographic evolution of the State of Virginia. 
2327. Geography of Virginia. — Philadelphia, Geog. Soc, Bull., vol. 5, no. 4, 
pp. 1-60, 1 pi., October, 1907. 
Includes an account of the topographic features and of the mineral resources. 
Swartz, Charles K. 
2328. The Ithaca fauna of Maryland. — Johns Hopkins Univ. Circ, new ser., 
1907, no. 7, pp. 50-55 [638-643], 1907. 
2329. The relation of the Columbus and Sandusky formations of Ohio. — ■ 
Johns Hopkins Univ. Circ, new ser., 1907, no. 7, pp. 56-65 [644-653], 1907. 
Taber, C. A. M. 
2330. The cause of geologic periods. Boston, Geo. H. Ellis Co., 1907. 68 pp. 
Taber, Stephen. 
2331. Some local effects of the San Francisco earthquake. — Jour. Geology, 
vol. 14, no. 4, pp. 303-315, 9 tigs., 1906. See also Jordan, no. 1325. 
Describes the faulting which produced the earthquake and its movements, as shown 
by various local displacements. 
Taff, Joseph A. 
2332. Description of the Muscogee quadrangle [Indian Territory]. — U. S. 
Geol. Survey, Geol. Atlas of U. S., folio no. 132, 7 pp., 1 fig., 3 maps, 1 columnar 
section sheet, 1906. 
Describes the physiographic features, the occurrence, character, and relations of prc- 
Cambrian, pre-Carboniferous, and Carboniferous formations, the geologic structure and 
history, and the economic resources. 
2333. Natural coke in the Wasatch Plateau. — Abstract: Science, new ser., 
vol. 23, p. 696, May 4, 1906. 
2334. Notes on the Weber River coal field, Utah.— U. S. Geol. Survey, Bull, 
no. 285, pp. 285-288, 1906. 
Describes the stratigraphy and structure of the held, and the occurrence, character, 
and composition of the coals. 
2335. Book Cliffs coal field, Utah, west of Green River.— U. S. Geol. Survey, 
Bull. no. 285, pp. 289-302, 1 pi. (map), 1906. 
Describes the stratigraphy and structure of the field, and the occurrence, character, 
and composition of the coals. 
2336. The Durango coal district, Colorado.— U. S. Geol. Survey, Bull. no. 316, 
pp. :!21-337, 1 pi., 1907. 
2337. The Pleasant Valley coal district, Carbon and Emery counties, Utah.— 
P. S. Geol. Survey, Bull. no. 31(5, pp. 33S-35S, 1 pi.. 1907. 
The production in the United States in 1906 of asphalt and bituminous rock. — 
See no. 2419. 
Taff, Joseph A., and Smith, Carl D. 
2338. Ozokerite deposits in Utah. — U. S. Geol. Survey. Bull. no. 285, pp. 369 - 
.•172. 1906. 
Describes the geologic relations of the deposits, the character of the mineral, and (be 
economic developments. 
