BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1906-1907. 187 
U. S. Geological Survey — Continued. 
Monazite and zircon, by Joseph Hyde Pratt, pp. 1313-1317. 
Peat, by Marius R. Campbell, pp. 1319-1322. 
Precious stones, by George Frederick Kunz, pp. 1323-1358. 
Quartz (flint) and feldspar, by Heinrich Ries, pp. 1359-1360. 
Talc and soapstone, by Joseph Hyde Pratt, pp. 1361-13G8. 
2419. Mineral resources of the United States. Calendar year, 1906. 1307 
pp., 2 figs., 1907. 
Contains the following papers, largely statistical in character, relating to the produc- 
tion, condition of the industry, etc., but also in some cases containing notes on the 
geology and occurrence of the products treated : 
Introduction, by David T. Day and E. W. Parker, pp. 9-12. 
Summary of mineral production of the United States in 1 906, compiled by Win. Taylor 
Thorn, pp. 13-65. 
(Metals.) 
Antimony, by Frank L. Hess, pp. 511-516. 
Bauxite and aluminum, by Ernest F. Burchard, pp. 501-510. 
Bismuth, by Frank L. Hess, p. 517. 
Chromite or chromic iron ore, by Arthur J. Collier, pp. 541-542. 
Copper, by L. C. Graton, pp. 373-438. 
Gold and silver, by Waldemar Lindgren and others, pp. 111-371. 
Production in the United States, by Waldemar Lindgren, pp. 111-134. 
Alaska, by Alfred H. Brooks, pp. 134-146. 
Arizona, by V. C. Heikes, pp. 147-177. 
California, by Charles G. Yale, pp. 178-198. 
Colorado, by Chester Naramore, pp. 199-240. 
Idaho, by V. C. Heikes, pp. 240-267. 
Montana, by Alexander N. Winchell, pp. 267-287. 
Nevada, by Charles G. Yale, pp. 287-300. 
New Mexico, by Chester Naramore, pp. 300-312. 
Oregon, by Charles G. Yale, pp. 312-318. 
South Dakota, by Chester Naramore, pp. 319-323. 
Southern Appalachian States, including Alabama, Georgia, Maryland. North Carolina, 
South Carolina, Tennessee, Virginia, by H. D. McCaskey, pp. 323-333. 
Texas, by H. D. McCaskey, pp. 333-334. 
Utah, by V. C. Heikes, pp. 334-362. 
Vermont, by II. D. McCaskey, p. 362. 
Washington, by Charles G. Yale, pp. 362-368. 
Wyoming, by Chester Naramore, pp. 368-371. 
Iron ores, pig iron, and steel, by Edwin C. Eckel, pp. 67-102. 
Lead, by J. M. Boutwell, pp. 439-457. 
Manganese ores, by Edwin C. Eckel, pp. 103-10!). 
Nickel, cobalt, tungsten, vanadium, molybdenum, titanium, uranium, and tantalum, by 
Frank L. Hess, pp. 519-540. 
Platinum, by David T. Day, pp. 551-562. 
Quicksilver, by J. M. Boutwell, pp. 491-499. 
Silver. See Gold and silver. 
Tin, by Frank L. Hess, pp. 543-549. 
Zinc, by J. M. Boutwell, pp. 459-489. 
(Fuels.) 
Coal, by E. W. Parker, pp. 563-753. 
Coke, by E. W. Parker, pp. 755-809. 
Natural gas, by B. Hill, pp. 811-826. 
Petroleum, by W. T. Griswold, pp. 827-896. 
(Structural materials.) 
Cement : 
Advances in cement technology, 1906, by Edwin C. Eckel, pp. 897-905. 
Statistics of cement industry in 1906, by L. L. Kimball, pp. 906-931. 
Clay-working industries, by Jefferson Middlcton. pp. 933-983. 
Glass sand, sand, and gravel, by Ernest F. Burchard, pp. !)i>3-1000. 
Lime and sand-lime brick, by Edwin C. Eckel, pp. 985-991. 
Slate, by A. T. Coons, pp. 1003 1005. 
Stone, by A. T. Coons, pp. 1007-1041. 
