6 1 4 RECENT P UBLICA TIONS 



Rogers and Schwarz, E. H. L. The Transkei Gap. [From ibid., Vol. 

 XIV, Part I, April, 1903.] 



— Russell, I. C. Preliminary Report on Artesian Basins in Southwestern 

 Idaho and Southeastern Oregon. [Water Supply and Irrigation Paper 

 No. 78; Washington, 1903.] 



— Schwarz, E. H. L. The Volcanoes of Griqualand, East. [From Trans, 

 of the S. African Philos. Soc, Vol. XIV, Part i, April, 1903.] 



• — Sinclair, W. J. A new Tortoise from the Auriferous Gravels of California. 

 [Univ. of Cal. Publ., Vol. Ill, No. i, pp. 243-48 ; Berkeley, Cal., 1903.] 



A Preliminary Account of the Exploration of the Potter Creek Cave, 



Shasta County, California. [Reprint from Science, N. S., Vol. XVII, 

 No. 435, pp. 708-12, May, 1903.] 



— Skeats, Ernest W. The Chemical Composition of Limestones from 

 Upraised Coral Islands with Notes on Their Microscopical Structures. 

 [Bull. Mus. Comp. Z06I., Harvard College, Vol. XLII; Cambridge, 

 Mass., June, 1903.] 



— Stevenson, John J. Lower Carboniferous of the Appalachian Basin. 

 [Bull, of the Geol. Soc. of Am.; Rochester, March, 1903.] 



— Taylor, L. H. Water Storage in the Truckee Basin, California-Nevada. 

 [Water Supply and Irrigation Paper No. 68, U. S. Geol. Surv.; Wash- 

 ington, igo2.] 



— -Taylor, Thomas U. Irrigation Systems of Texas. [Water Supply and 

 Irrigation Paper No. 71, U. S. Geol. Surv.; Washington, 1902.] 



— United States Geological Survey : Contributions to Economic Geology, 

 1902. S. F. Emmons and C. W. Hayes, Geologists in charge. [Bull. 

 No. 213, U. S. Geol. Surv.; Washington, 1903.] 



— United States Geological Survey, Department of Hydrography: Operations 

 at River Stations 1901, Part II (west of Mississippi River). [Water 

 Supply and Irrigation Paper No. 66; Washington, 1902.] 



Operations at River Stations 1901, Part I (East of Mississippi River). 



[Water Supply and Irrigation Paper No. 66; Washington, 1902.] 



Twenty-third Annual Report, 1 901-2, C. D. Walcott, Director. [Wash- 

 ington, 1903.] 



— University of Texas Mineral Survey: The Mining Laws of Texas and 

 Tables of Magnetic Declination. [Bull. No. 6; Austin, July, 1903.] 



— Washington, Henry Stephens. Chemical Analyses of Igneous Rocks, 

 Published from 1884 to 1900; with a critical discussion of the char- 

 acter and use of analyses. [Professional Paper No. 14, U.S. Geol. 

 Surv.; Washington, 1903.] 



— Weed, Walter Harvey. Ore Deposits Near Igneous Contacts. A 

 paper read before the Amer. Inst, of Min. Eng. at the New Haven 

 meeting, October, 1902. [Author's edition, 1903.] 



— Whitfield, R. P. Observations on a Remarkable Specimen of Halysites 

 and Description of a New Species of the Genus. [Extract from Bull, 

 of Am. Mus. Nat. Hist., Vol. XIX, Art. XVI, pp. 489, 490. [New 

 York, August, 1903.] 



