REGENT. PUBLICATIONS. 
—Hess, F. L. Tungsten Minerals and Deposits. [U.S. Geological Survey, 
Bulletin 652. Washington, 1917.] 
—Htnps, Henry. The Coal Resources of the Clintwood and Bucu Quad- 
rangle, Virginia. [Virginia Geological Survey, Bulletin XII. (Prepared 
in co-operation with the U.S. Geological Survey.) Charlottesville, 1916.| 
—Honman, C. S. The Geology of the Country South of Kalgoorlie (Cool- 
gardie and East Coolgardie Goldfields), Including the Mining Centers of 
Golden Ridge and Faysville. [Western Australia Geological Survey, Bul- 
letin 66. Perth, 1916.] 
—Illinois Geological Survey. Coal Mines and Coal Fields of Illinois, Map of. 
[Urbana, 1916.] 
—INNOCENT,,C. F. The Development of English Building Construction. 
[Cambridge: University Press, 1916; New York: Putnam.| 
—JEFFREY, E.C. The Anatomy of Woody Plants. [Chicago: University of 
Chicago Press, 1917. Price $4.00.] 
—JIMENEZ, Cartos P. Estadistica Minera en 1914. [Boletin del Cuerpo de 
Ingenieros de Mines del Peru, No. 82. Lima, 1016.| 
Estadistica Minera en 1to15. [Boletin del Cuerpo de Ingenieros de 
Mines del Peru, No. 83. Lima: Imp. Americano-Abancay 154. 1917.] 
—Jonas, ANNA L. Pre-Cambrian and Triassic Diabase in Eastern Pennsyl- 
vania. Bulletin American Museum of Natural History, Vol. XX XVII, 
Art. III, pp. 173-81. [New York, 1917.| 
—KEELE, J. Preliminary Report on the Clay and Shale Deposits of the 
Province of Quebec. [Canada Department of Mines, Memoir 64, No. 
1451, Geological Survey, Geological Series, No. 52. Ottawa, 1915.] 
—Kunz, G. F. The Production of Precious Stones for the Year 1015. 
Reprinted from Mineral Industry, Vol. XXIV. [New York: McGraw- 
Hill Book Co., 1916.] 
—LasegE, F.H. Field Geology. [New York: McGraw-Hill Book Co., 1916.] 
—Lispoa, ARROJADO. O Problema do Combustivel Nacional. Conferencia 
realisida na Bibliotheca Nacional en 14 de Junho de 1916. Off. Auto- 
Typ. da E. F. Central do Brasil. [Rio de Janeiro, 1916.] 
—McCanpuss, E. S. A Preliminary Report on Blended Portland Cement. 
School of Mines and Metallurgy, University of Missouri, Bulletm, Feb- 
ruary, 1917. Technical Series, Vol. III, No. 3. ([Rolla, 1917.] 
—Matson, G. C., anp Hopxins, O. B. The Corsicana Oil and Gas Field, 
Texas. [U.S. Geological Survey, Bulletin 661-F. Washington, 1917.] 
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