II ADVERTISEMENT. 



MONOGRAPHS. 



I. Lake Bonneville, by Grove Karl Gilbert. 1*90. 4. xx,438pp. 51 pi. 1 map. Price $1.50. 



II. Tertiary History of the Grand Canon District, with atlas, byClarenee K. Dutton, Capt., U. s. A. 

 1882. l . xiv,264pp. 42 pi. and atlas of 24 sheets folio. Price $10.00. 



III. Geology of the Comstock Lode and the Washoe District, with atlas, by George F. Beeker. 

 1882 I- xv,422pp. 7 pi. and atlas of 21 sheets folio. Price $11.00. 



IV. Comctock Mining and Miners, by Eliot Lord. 1883. 1. xiv, 451 pp. 3 pi. Price $1.50. 



V. The Copper-Bearing Rocks of Lake Superior, by Roland Duer Irving. 1883. 4 . xvi, 164 

 pp. 151. 29 pi. and maps. Price $1.85. 



VI. Contributions to the Know ledge of the I Uder Mesozoic Flora of Virginia by William Munis 

 Fontaine 1883. 1 . xi, 144 pp. 54 1. 54 pi. Price $1.05. 



VII. silver-Lead Deposits of Eureka, Nevada, by Joseph Story Curtis. 1*81. 4-. xiii, 200 pp. 

 16 pi. Price $1.20. 



VIII. Paleontology of the Eureka District, by Charles DooUttle Walcott. 1884. 1 . xiii, 298 

 pp. 24 1. 24 pi. Price $1.10. 



IX. Brachiopoda and Laniellibranchiata of the Raritan Clays and Grcensand Marls of New 

 Jersey, by Robert P. Whitfield. 1885. 1. xx,338pp. 35 i>l. 1 map. Price $1.15. 



X. Dinocerata. A Monograph of an Extinct Order of Gigantic Mammals, by Othniel Charles 

 Marsh. 1886. 4°. xviii, 243 pp. 561. 56 pi. Price $2.70. 



XI. Geological History of Lake Lahontan, a Quaternary Lake of Northwestern Nevada, by 

 Israel Cook Russell. 18S5. 1 . xiv, 288 pp. 46 pi. and maps. Price $1.75. 



XII. Geology and Mining Industry of Leadville, Colorado, with atlas, by Samuel Franklin Em- 

 mons. 1886. 1°. xxix, 770 pp. 15 pi. and atlas of 35 sheets folio. Price$8.40. 



XIII. Geology of the Quicksilver Deposits of the Pacific slope, with atlas, by George F. Becker, 

 1888. I . xix, 486pp. 7 pi. and atlas of 14 sheets folio. Price $2. no. 



XIV. Fossil Fishes and Fossil Plants of the Triassic Rocks of New Jersey and the Connecticut 

 Valley, by John S. Newberry. 1888. 4. xiv, 152pp. 26 pi. Price $1.00. 



XV. The Potomac or Younger Mesozoic Flora, by William Morris Fontaine. 1889. 4-, xiv, 

 377 pp. lso pi. Text and plates bound separately. Price $2.50. 



XVI. The Paleozoic Fishes of North America, by John Strong Newberry. 1889. 4-. 340 pp. 

 53 pi. Price $1.00. 



XVII. The Flora of the Dakota Group, a posthumous work, by Leo Lesquerenx. Edited by F. 

 11. Knowlton. 1891. 1 . 400pp. 66 pi. Price $1.10. 



XVIII. Gasteropoda and Cephalopoda of the Raritan Clays and Greensand Marls of New Jersey, 

 by Robert P. Whitfield. 1891. 4°. 402 pp. 50 pi. Price $1.00. 



XIX. The l'cnokec Iron-Bearing Scries of Northern Wisconsin and Michigan, by Roland D. 

 Irving and C. R. Van Hise. 1892, I. xix, 531 pp. Price $1.70. 



XX. Geology of the Eureka District, Nevada, with an atlas, by Arnold Hague. 1892. 4°. xvii, 

 119 pp. 8 pi. Price $5.25. 



XXI. The Tertiarv Rhynchophorous Coleoptera of the United States, by Samuel Hubbard Scud- 

 der. 1893. 4 . xi, 206 pp. 12 pi. Price 90 cents. 



XXII. A Manual of Topographic Methods, by Henry Gannett, chief topographer. 1893. 4". 

 m\ ,300 pp. IS pi. Price $1.00 



XXIII. < ieology of the Green Mountains in Massachusetts, by Raphael Pumpelly, T. Nelson Dale, 

 and J. E. Wolff. 1894. 1. xiv, 206 pp. 23 pi. Price $1.30 



In press : 



XXIV. Mollusca and Crustacea of the Miocene Formations of New Jersey, by R. P. Whitfield. 



III preparation : 



— Sauropoda, by O. C. Marsh. 



— Stegosauria, by O. C. Marsh. 



— Brontothorida', by O. C. Marsh. 



—Report on the Denver Coal Basin, by S. F. Emmons. 



— Report on Silver Cliff and Ten-Mile Mining Districts, Colorado, by S. F.Emmons. 



— The Glacial Lake Agassiz, by Warren Uphara. 



BULLETINS. 



1. on Hypeisthene-Andesite and on Triclinic Pyroxene in Augitic Rocks, by Whitman Cross, 

 with a Geological sketch of Buffalo Peaks, Colorado, by S. F. Emmons. 1883. 8 . 12 pp. 2 pi. 

 Price in cents. 



2. Gold and Silver Conversion Tables, giving the coining values of troj ounces of line metal, etc., 

 computed by Albert Williams, jr. 1883, s. s pp. Price 5 cents. 



3. i)n 1 1n- Fossil Faunas of the Upper Devonian, along the meridian of 76 30', from Tompkins 

 Count v. 'J. Y.. to Bradford County, Pa., by Henry S. Williams. 1884. 8°. 36 pp. Price 5 cents. 



4. On Mesozoic Fossils, by Chairles A. White. 1884. 8°. 30 pp. 9 pi. Price 5 cents. 



5. A Dictionary of Altitudes in the United states, compiled 1>\ Henry Gannett. 1884. 8 . 325 

 lip Price 20 cents. 



