758 REVIEWS 
Structural materials—building stone: Shelby County, Ala.; Granites 
of Massachusetts. Clays: Calhan, El Paso County, Colo.; Murphysboro 
quadrangle, Illinois; clays from Texas. Gypsum: Eagle County, 
Colo. Phosphates: Idaho Phosphate Reserve; Melrose, Mont.; west- 
ern Wyoming. Mineral paints: paint shales of Pennsylvania. Sulphur: 
deposits near Soda Springs, Idaho. Miscellaneous non-metallic pro- 
ducts: asbestos deposits in the United States; dolomite near Montevallo, 
Shelby County, Ala.; Graphite near Dillon, Mont.; fluor spar near 
Deming; N.M. 
A bibliography of Survey publications on the subjects treated is 
found at the end of each chapter. 
AMD: Be 
Contributions to Economic Geology, 1910. Pt. II. Mineral Fuels. 
By M. R. Campsetyt. U.S. Geol. Survey Bull. No. 471. 
Pp. 663; figs. 15; pls. 62. Washington, 1912. 
This bulletin is a collection of short papers by various authors on 
coal and oil fields investigated by the United States Geological Survey 
during 1gto. 
The reports cover the following regions, grouped by states: 
Petroleum and natural gas—Kentucky: Campton oil pool, Knox 
County. Alabama: Fayette gas field. Wyoming: Powder River oil 
field. Utah: San Juan oil field; Grand River. California: San 
Joaquin Valley. 
Coal and lignite—North Carolina: Dan River. North Dakota: 
Ft. Berthold Indian Reservation. Montana: Baker, Terry, Glendive, 
Sidney, Culberson, Milk River, Livingston, Trail Creek, and Electric 
fields. Wyoming: Little Powder River, Sussex, Lost Spring, and 
Wind River fields. Colorado: Gunnison Valley. New Mexico: 
Tigeras field. Utah: Deep Creek and Blacktail Mountain fields. 
A table of miscellaneous analyses of coal samples from various fields 
of the United States is appended. 
ADE Be 
