38 BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1906-1907. 
Burrows, R. H. 
365. The Lluvia de Oro district, Mexico. — Min. and Sci. Press, vol. 94, pp. 
664-667, 4 figs., May 25, 1907. 
Gives notes upon the geology and the character and occurrence of the gold ores. 
Bustamante, M. 
366. Ligero estndio sobre los pozos de " El Ebano," explotados por la Mexi- 
can Petroleum Co.— Soc. Geol. Mexicaua, Bol., t. 2, pp. 111-131, 1 pi., 1906. 
Describes the occurrence of the petroleum at Ebano, in the State of San Luis Potosi, 
Mexico. 
Butts, Charles. 
367. The Devonian section near Altoona, Pennsylvania. — Jour. Geology, vol. 
14, no. 7, pp. 618-630, 9 figs., 1906. 
Describes the occurrence, relations, and lithologic characters of Devonian formations 
near Altoona, Pa. 
368. Economic geology of the Kittanning and Rural Valley quadrangles, 
Pennsylvania.— TJ. S. Geol. Survey, Bull. no. 279, 198 pp., 11 pis., 14 figs., 1906. 
Describes the topography, geologic structure, occurrence, character, and relations of 
Carboniferous strata and Quaternary deposits, and the mineral resources, chiefly coal, 
petroleum, natural gas, and clays. 
369. The Warrior coal basin in the Birmingham quadrangle, Alabama.— 
U. S. Geol. Survey, Bull. no. 285, pp. 211-222, 1 pi. (map), 1906. 
Describes the stratigraphy and structure of the field ; the occurrence, character, and 
relations of the coal seams ; and the character and composition of the coal. 
370. Limestone and dolomite in the Birmingham district, Alabama. — U. S. 
Geol. Survey, Bull. no. 315, pp. 247-255, 1907. 
371. Sand-lime brickmaking near Birmingham, Ala. — U. S. Geol. Survey, 
Bull. no. 315, pp. 256-258, 1907. 
372. Clays of the Birmingham district, Alabama. — TJ. S. Geol. Survey, Bull, 
no. 315, pp. 291-295, 1907. 
373. The northern part of the Cahaba coal field, Alabama. — U. S. Geol. 
Survey, Bull. no. 316, pp. 76-115, 2 pis., 1907. 
Byers, Charles Alma. 
374. The possibilities of Salton Sea. — Pop. Sci. Monthly, vol. 70, no. 1, 
pp. 5-18, 20 figs., January, 1907. 
Includes data upon the physiographic features of southern California. 
Caballero, Gustavo de J. 
375. La region geisseriana al N. de Estado de Michoacan [Mexico]. — Soc. 
cient. "Antonio Alzate," Mem. y Rev., t. 22, pp. 203-208, 1905. 
Describes a geyser region in the northern part of the State of Michoacan, Mexico. 
376. Los yacimientos de fierro del Carrizal, Estado de Nuevo Leon 
[Mexico].— Soc. cient. "Antonio Alzate," Mem. y Rev., t. 22, pp. 183-186, 1905. 
Describes the occurrence of iron deposits. 
377. Los hervideros de la Sierra de Ozumatlan. — Soc. Geol. Mexicana, Bol., 
t. 2, pp. 35-41, 1906. 
Includes notes upon the geology and mineralogy of the area. 
Cadell, Henry M. 
378. Some old Mexican volcanoes. — Scottish Geog. Mag., vol. 23, no. 6, pp. 
281-312, 26 figs., June, 1907. 
Cairnes, D. D. 
379. [Report on] the foothills of the Rocky Mountains south of the main 
line of the Canadian Pacific Railway. — Canada, Geol. Survey, Summ. Rept. for 
1905, pp. 62-67, 1906. 
Gives notes upon the geology of the region examined. 
