20 BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1906-1907. 
Ball, Sydney H. — Continued. 
119. Notes on ore deposits of southwestern Nevada and eastern California. — ■ 
U. S. Geol. Survey, Bull. no. 285, pp. 53-73, 1 fig., 1906. 
Describes the general geology, the occurrence and character of gold and silver ores, 
and the mining developments. 
120. A geologic reconnaissance in southwestern Nevada and eastern Cali- 
fornia.— U. S. Geol. Survey, Bull. no. 308, 218 pp., 3 pis., 17 figs., 1907. 
Describes the general stratigraphy of the area examined, the topography, structure, 
and stratified and igneous rocks of the various ranges, with notes on the character and 
occurrence of the economic minerals. 
121. Copper deposits of the Hartville uplift, Wyoming. — U. S. Geol. Survey, 
Bull. no. 315, pp. 93-107, 1907. 
122. The Hartville iron-ore range, Wyoming. — U. S. Geol. Survey, Bull. no. 
315, pp. 190-205, 1 fig., 1907. 
Describes the stratigraphy and geologic structure of the area, and the occurrence and 
origin of the iron ores. 
123. Titaniferous iron ore of Iron Mountain, Wyoming. — U. S. Geol. Survey, 
Bull. no. 315, pp. 206-212, 1907. 
124. Portland cement materials in eastern Wyoming. — U. S. Geol. Survey, 
Bull. no. 315, pp. 232-244, 2 figs., 1907. 
125. Mica in the Hartville uplift, Wyoming. — U. S. Geol. Survey, Bull. no. 
315, pp. 423^25, 1907. 
126. Graphite in the Haystack Hills, Laramie County, Wyoming. — U. S. 
Geol. Survey, Bull. no. 315, pp. 426-428, 1907. 
Bancroft, George J. 
127. The formation and enrichment of ore-bearing veins. — Am. Inst. Min. 
Eng., Bi-Mo. Bull., no. 15, pp. 499-522, 1907. 
128. Ore deposition. — Min. and Sci. Press, vol. 95, pp. 580-581, November 9, 
1907. 
Barbour, Erwin Hinckley. 
129. Notice of a new fossil mammal from Sioux County, Nebraska. — Nebraska 
Geol. Survey, vol. 2, pt. 3, 4 pp., 1 pi., 1905. 
Describes Byndyoceras cooki n. gen. and n. sp. from the Loup Fork beds at Agate, 
Nebraska. 
130. Notice of a new fossil rhinoceros from Sioux County, Nebraska. — 
Nebraska Geol. Survey, vol. 2, pt. 4, pp. 311-318, 5 figs., 1906. 
Describes Diceratherium arikarense from the Loup Fork beds. 
131. Evidence of loess man in Nebraska. — Nebraska Geol. Survey, vol. 2, 
pt. 6, pp. 329-348, 16 figs., 1907. 
132. Report on the Honey Creek coal mine. — Nebraska Geol. Survey, vol. 2, 
pt. 7, pp. 349-364, 7 figs., 1907. 
133. Biennial report.— Nebraska Geol. Survey, vol. 2, pt. 8, pp. 365-387, 1907. 
An administrative report. 
134. Report of the tenth geological expedition of Hon. Charles H. Morrill, 
season of 1905. — Science, new ser., vol. 23, pp. 114-115, January 19, 1906. 
135. The skull of Syndyoceras. — Abstract : Science, new ser., vol. 23, pp. 
288-289, February 23, 1906 ; Am. Assoc. Adv. Sci., Proc, vol. 55, pp. 378, 1906. 
136. The skulls of Syndyoceras and Protoceras. — Abstract : Science, new ser., 
vol. 23, p. 623, April 20, 1906. 
