ADVERTISEMENT. 



M< )\( (GRAPHS. 



I. Late Bonneville, by Grove Karl Gilbert. 1800. 4". xx, 138 pp. 51 pi. 1 map. Price$1.50. 



II. Tertiary History of the Grand Canon District, with Atlas, by Clarence E. Dutton, Capt., U. S. A. 

 1882. 1 . xiv, 264 pp. 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. liecker. 

 1882. 1. xv, 422 pp. 7 pi. and atlas of 21 sheets folio. Price $11.00. 



IV. Comstock Mining and Miners, by Eliot Lord. 1883. 4°. xiv, 451 pp. 3 pi. Price $1.50. 



V. The Copper-Bearing Rocks of Lake Superior, by Roland Duer Irving. 1883. 4°. xvi, 464 

 pp. L51. 29 pi. and maps. Price $1.85. 



VI. Con trili nt ions to the Knowledge of t lie Older Mesozoic Flora of Virginia, by William Morris 

 Fontaine, 1883. 1 . xi, 144 pp. 541. 54 pi. Price $1. 0.1. 



VII. Silver-Lead Deposits of Eureka, Nevada, by Joseph Story Curtis. 1884. 4°. xiii, 200 pp. 

 16 pi. Price $1.20. 



VIII. Paleontology of the Eureka District, by Charles Doolittle Walcott. 1884. 4°. xiii, 298 

 pp. 241. 21 pi. Price $1.10. 



IX. Brachiopoda and Lamellibranchiata of the Raritan Clays and Greensand Marls of New 

 Jersey, by Robert P. Whitfield. 1885. 4°. xx,338pp. 35 pi. 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. 1885. '4 C . xiv, 288 pp. 46 pi. and maps. Price $1.75. 



XII. Geology and Mining Industry of Leadville, Colorado, with Atlas, by Samuel Franklin Fm- 

 mons. 1886. 4°. xxix, 770 pp. 45 pi. and atlas of 35 sheets folio. Price $8.40. 



XIII. Geology of the Quicksilver Deposits of the Pacific Slope, with Atlas, bvGeorge F. Becker. 

 l.sss. 1. xix, 486pp. 7 id. and atlas of 14 sheets folio. Price $2.00. 



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

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



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

 377 pp. 180 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 I lakota Group, a Posthumous Work, bv Leo Lesquereux. Edited by F. 

 H. Knowlton. 1891. I . 100 pp. 66pl. Price $1.10. 



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

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



XIX. The Penokee Iron-Bearing Series of Northern Wisconsin and Michigan, by Roland D. 

 Irving and C. R. Van Hise. 1892. 4°. xix, 534 pp. Price $1.70. 



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

 419 pp. 8 pi. Price $5.25. 



XXI. The Tertiary Rhynchophorous Colroptera of the I'nited States, by Samuel Hubbard Scud- 

 der. 1803. 4 . xi, 206* pp. 12 pi. Price 90 cents. 



XXII. A Manual of Topographic Methods, by Henry Gannett, Chief Topographer. 1893. 4°. 

 xiv, 300 pp. 18 pi. Price $1.00. 



XXIII. Geology 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. 



XXIV. Mollusca and Crustacea of the Miocene Formations of New Jersey, by Robert Parr Whit- 

 field. 1894. I . 193 pp. 24 pi. Price 90 cents. 



XXV. The Glacial Lake Agassiz, by Warren Upham. 1895. 4°. xxiv, 658 pp. 38 pi. Price $1.70. 



XXVI. Flora of the Amboy Clays, by John Strong Newberry; a P. sthumous Work, edited by 

 Arthur HoUick. 1895. 4°. 260 pp. 58 pi. Price $1.00. 



XXVII. Geology of the Denver Basin in Colorado, by Samuel Franklin Emmons, Whitman Cross, 

 and George Homans Eldridge. 1896. 4°. 556 pp. 31 pi. Price $1.50. 



XXVIII. The Marquette Iron-Bearing District of Michigan, by 0. R. Van Hise and W. S. Bay- 

 ley, with a Chapter on the Republic. Trough, by C. L. Smyth. 



In preparation: 



XXIX. The Geology of Old Hampshire County, Massachusetts, comprising Franklin. Hampshire, 

 and Hampden Counties, by Benjamin Kendall Emerson. 



XXX. Fossil Medusa-, by Charles Doolittle Walcott. 



— The Glacial Gravels of Maine and their Associated Deposits, by George H. Stone. 



— Geology of the Narragansett Basin, by N. S. Shaler, J. B. Wood worth, and August F. Foerste. 



— Geology of the Yellowstone National Park, by Arnold Hague and others. 



— Geology of the Aspen Mining District, Colorado, by Josiah Edward Spurr. 



— Sauropoda, by ( >. c. Marsh. 



— Stegosanria, by 0. C. Marsh. 



— BroutotheridtB, by <>. C. Marsh. 



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



— Flora of the Laramie aud Allied Formations, by Frank Hall Knowlton. 



