448 RECENT P UBLICA TIONS 



marine Antillean Valleys. Canadian Jour, of Science, Vol. V, pp. 324- 

 366, April 1898. 

 — Stone, George H. Article V. The Granite Breccias of the Cripple 



Creek Region. Amer. Jour. Sci., Vol. V, January 1898. 

 — Tyrrell, J. B. The Cretaceous of Athabasca River. Reprinted from 

 Ottawa Naturalist, Vol. XII, No. 2, 1898. 

 United States Department of Agriculture Year Book, 1897. Washington, 



1898. 

 United States Geological Survey : 



Reconnaissance of the Gold Fields of Southern Alaska, with some 

 Notes on General Geology. George F. Becker. Eighteenth Ann. 

 Report U. S. Geol. Survey, Part III, Economic Geology. Washington, 

 1897. 

 The Witwatersrand Banket, with Notes on other Gold-Bearing Pudding 

 Stones. Ex. from 18th Ann. Rep., Part V, Mineral Resources of the 

 U. S. Ibid. 

 Water Resources of Indiana and Ohio. Frank Leverett. Ex. from 1 8th 



Ann. Report, Part IV, Hydrography. 

 New Developments in Well Boring and Irrigation in Eastern South 



Dakota, 1896. N. H. Darton. Ibid. 

 Eighteenth Ann. Report, 1896-7. Part V and Part V continued. 

 Mineral Resources of the United States, 1896. Metallic Products and 

 Coal. 

 — Weller, Stuart. Descriptions of Devonian Crinoids and Blastdids from 

 Milwaukee, Wis. Annals N. Y. Acad. Science, XI. No. 7, May 1898. 

 Description of a New Species of Hydreioncrinus from the Coal Measures 

 of Kansas. Trans. N. Y. Acad. Sci., Vol. XVI, pp. 372-374. February 

 1898. 

 — White, Theodore G. The Original Trenton Rocks. Amer. Jour. Sci., 

 Vol. II, 1896. 



A Contribution to the Petrography of the Boston. Basin. Proc. Boston 

 Society Natural History, Vol. 28, No. 6, Boston, 1898. 

 — Whitney, Milton. Some Interesting Soil Problems. Reprint from 

 Year Book of Department of Agriculture for 1897. Washington, 1898. 

 — Williams, Henry Shaler. On the Genetic Energy of Organisms. 

 Reprinted from Science, N. S., Vol. VII, No. 178, pp. 721-730. May 

 27, 1898. 



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