94 BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1906-1907. 
Heneage, E. F. 
1130. A consideration of the Archean period of the continents of North 
America and South Africa, with reference to mineral occurrences.— British 
Assoc. Adv. Sci., Kept, of 75th meeting, pp. 410^11, 1906. 
Henton, John M. 
1131. An interesting study in geology. — Min. World, vol. 27, p. 975, 1 fig., 
November 30, 1907. 
Discusses a land slip in Montana. 
Herrick, R. L. 
1132. The Joplin zinc district. — Mines and Minerals, vol. 28, no. 4, pp. 145- 
157, 1 pi., 15 figs., November, 1907. 
Includes an account of the geology of the district. ~ 
The Gold Prince mine and mill. — See Scholl and Herrick, no. 2141. 
Hershey, Oscar H. 
1133. Some western -Klamath stratigraphy. — Am. Jour. Sci., 4th ser., vol. 21, 
pp. 58-66, January, 1906. 
Describes the faulting of the region and the occurrence, character, and relations of 
stratified and volcanic rocks, and discusses the relative age of certain formations. 
Hess, Frank L. 
1134. The York tin region [Alaska].— U. S. Geol. Survey, Bull. no. 284, pp. 
145-157, 1 fig., 1906. 
Describes the general geology, and the occurrence, character, and relations of tin 
lodes and of tin-bearing gravels. 
1135. Some magnesite deposits of California. — U. S. Geol. Survey, Bull. no. 
285, pp. 385-392, 1900. 
Describes the occurrence and character of the deposits and the economic developments. 
1136. Review of "Tin deposits of the world/' by Sidney Fawns (London, 
The Mining Journal, 1905).— Econ. Geology, vol. 1, no. 5, pp. 500-502, 1906. 
1137. What is a tissure vein V — Econ. Geology, vol. 1, no. 7, pp. 700-702, 1906. 
1138. The working liiagnesite deposits of California. — Eng. Mag., vol. 31, 
no. .",, pp. 691-704, 8 tigs., August, 1906. 
Includes notes on the occurrence and character of the deposits. 
1139. The Carolina tin deposits.— Eng. Mag., vol. 32, no. 1, pp. 10-20. 5 figs., 
October, 1906. 
Includes notes on the geology, and on the occurrence and character of the tin deposits. 
1140. The York tin region of Alaska.— Eng. Mag., vol. 32, no. 3, pp. 352- 
369, 8 figs., December, 1906. 
Gives a brief account of the geology, occurrence, and character of the tin ores in the 
York region of Alaska. 
The Rampart gold placer region. — See Prindle and Hess, no. 1958. 
The production in the United States in 1905 of tin. — See no. 241 X. 
The production in the United States in 190(5 of antimony, bismuth, nickel, 
cobalt, tungsten, vanadium, molybdenum, titanium, uranium, and tantalum; 
of arsenic ; of selenium, and of tin. — See no. 2419. 
Hice, Richard R. 
1141. What should be embraced in a geological study and report on clays? — 
Am. Ceramic Soc, Trans., vol. 8, pp. 221-225, 1906. 
Hice, Richard P.. and others. 
1142. Report of I lie committee on cooperation wkh federal and state 
geological surveys. — Am. Ceramic Soc, Trans., vol. 9, pp. 741-771, 1907, 
Includes various data relating to the study of and reports on clays. 
