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Chemistry of California Petroleum, (Am. Geol., Vol. 35, pp. 240- 
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Resourcf s. Geology and Water Supply of Northern Arkansas. (U. 
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REYNOLDS, O. J. 
A Method of Sampling a Difficult Ore, (Cal. Jour, of Technologry. 
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RICE, GEO. S. 
The Mount Ranier Coalfields, Washington. (Eng. Mln. Jour., Vol. 
79, p. 660, April 6, 1905.) 
RICKARD, T. A. 
Gold Quartz Veins in Victoria. (Eng. Min. Jour., Vol. 79, p. 573. 
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RIXON, THEODORE F. 
Forest Conditions in the Gila River Forest Reserve, New Mexico. 
(U. S. G. S., Professional Paper, No. 39, pp. 87, Pis. 2, 1905.) 
RUEDEMANN, R. 
Structure of Some Primitive Cephalopods. (Reprinted from the 
Report of the New York State Paleontologist, 1903; pp. 296-370, 
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RUSSELL, 1. C. 
Hanging Valleys. (Bull. G. S. A., Vol. 16, pp. 75-90, Feb., 1905.) 
SANFORD, SAMUEL 
The Coal Mines of the West Side Belt Railroad. (Eng. Min. 
Jour., Vol. 79, p. 650. Apr. 6, 1905.) 
SHEPARD, E. M. 
Topography, Geologic conditions and Water Supply of Missouri. 
(U. S. G. S., Wat. Sup. Ir. Pap., 114, pp. 209-219, 1905.) 
SHULTZ, A. R. 
Topography, Geology and Water Supply of Wisconsin. (U. S. G. 
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Sketch of Henry McCalley. [Portrait.] (Am. Geol., Vol. 35, April 
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SMITH, E. A. 
Water Supply of Alabama. (U. S. G. S., Wat. Sup. and Ir. Pap., 
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SMYTH, C. H.. JR. 
Replacement of Quartz by Pyrite and Corrosion of Quartz Peb- 
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