IV ADVEHTISEMKNT. 



lu preparatiou : 



— Notes ou the Geology of Soiithwesteru Kansas, liy Robert Hay. 



— On the Glacial Boundary, by G. F. Wright. 



— Tlio Gabbros and Associated Rocks in Delaware, by F. D. Chester. 



— Fossil Woods and Lignites of the Potomac Formation, by F. 11. ICno>vlton. 



— Mineralogy of the Pacific Coast, by W. H. Melville and Waldemar Liudgren. 



— Keport of work done in tlio Division of Clicmi-itrv and Physics, mainly during the fiscal year 



isrtn-'sT. 



— A Report on the Tbernio Electrical Measurement aoil High Temperatures, by Carl Barns. 



— The (ircenstouo .Schist Areas of the Monominl^e aud Marqaette Regions of Michigan, by George 

 H. Williams; with an introduction by R. D. Irving. 



— Hibliogr.apby of the Paleozoic Crustacea, by A. W. Vogdes. 



— The Viscosity of Solids, by Carl Barns. 



— Author-Catalogue of Coutributions to North American Genlogy, by N. H. Darton. 



— On a Group of Volcanic Rocks from the To wan Mountains, New Mexico, and on the occurrence 

 of Primary (,>u;irtz in certain Basalts, by J. P. Iddings. 



— (Ill llll^ rrliil iiins of the Traps of the .Tnra-Trias of New .Jersey, bv N.H. Darton. 



— Ml il iidis hi 'tween Lak(^ Superior aud the Rocky Mountains, by Warren Upham. 



— Mesii -oil- Fiissils in the Pmiiiian of Texas, by C. A. White. 



STATISTICALvPAPERS. 



Miuer.il Resources of the United States [1832], by Albert Williams, jr. 1883. 8°. xvii, 813 pp. 

 Price .^>0 cents. 



Mineral Resources of the United States, 1S33 aud 1834, by Albert Williams, jr. 188.';. 8'^. xiv, 

 lOlfi pp. Price (iO cents. 



Miner.al Resources of the United States, IS^.'i. Divisioa of Mining Statistics aud Technologv. 

 IrtHi). 8-^. vii, .'iTGpp. Price 40 cents. 



Mineral Resources of the United States, 1335, by David T. Diy. 133". S^". viii, 81.! pp. Pri.e 

 ,">() cents. 



Mineral Resources of the United States, 1837, by David T. D.iy. 1833. 8°. vii, 8M pp. Price 

 r>0 cents. 



In preparation : 



Mineral Resources of the United States, 1888, by David T. Day. 



The money received from the sale of these publications is deposited in the Treasury, and the 

 Secretary of that Department declines to receive bank checks, dr.afts, or postage stamps ; all remit- 

 tances, therefore, must be by po.stm. note or monky ordek, made ])ayable to the Librarian of lh<' 

 U. S. Geological Survey, or in cuRitRXCY for the exact amount. Corresi>oudeuce relating to the pub- 

 lications of the Survey should be addressed 



To THE DlliECTOR OF Till'. 



United States Gkolooical Suuvey, 



Washington, D. C. 

 Washington, D. C, March 15, 1889. 



