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JIONOGKAPHS. 



I. Lake Ronneville, hy Grove Karl Oilbert. 1890, 4°. xx, 43S pp. 51 pi. 1 map. Price $1.50. 



II. Tertiary History ol'tlieCirainU'ariou District, with Atlas, bv Clarence E. Dutton, Capt.. U. S. A. 

 IX><2. 4 . xiv, -Mi pp. 42 pi. ami atlas of 24 sheets folio. Price iflO.OO. 



III. Geolof;v of the Comstock Lode and the Washoe District, with Atlas, by George F. Becker. 

 1882. 4°. XV, 422 pp. 7 pi. and atlas of 21 sheets folio. Price $11.00. 



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



V. The Copi)er-l!earing Rocks of Lake Superior, by Roland Duer Irving. 1883. 4^. xvi, 464 

 pp. l.M. 29 pi. and maps. Price $1.85. 



\1. Contributions to the Knowledge of the Older Mesozoic P'lora of Virginia, by William Morris 

 Fontaine. 1883. 4. xi, 144 pp. 54 1. 54 pi. Price $1.05. 



VII. Silver- Lead Deposits of Eureka, Nevada, bv Joseph Storv Curtis. 1884. 4"^. xiii, 200 pi>. 

 16 pi. Price $1.20. 



VIIL Paleontology of the Eureka District, by Charles Doolittle Walcott. 1884. 4°. xiii, 29H 

 pp. 241. 24 pi. Price" $1.10. 



IX. Brachi(>i>oda and Lamellibranchiata of the Raritan Clays and Greensand Marls of New 

 Jersey, by Robert P. Whitlield. 1885. 4'^. xx, 338 pp. 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. 56 1. .56 pi. Price $2.70. 



XI. Geological History of Lake l.,ahontau, a (Quaternary Lake of Northwestern Nevada, by 

 Israel Cook Russell. 1885. 4<=. 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. 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, bv George F. Becker. 

 1888. 4^. xix, 486" pp. 7 pi. 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. 



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

 377 jjp. 180 pi. Text and plates bound separately. Price $2.50. 



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

 53 pi. Price $1.00. 



XVII. The Flora of the Dakota Group, a Posthumous Work, by Leo Lesquereux. Edited by F. 

 n. Knowlton. 1891. 4^. 400 pp. 66 pi. Price $1.10. 



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

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



XIX. The Pcnokee Iron-Bearing Series of Northern Wisconsin and Michii;an, bv Roland D. 

 Irving and C. R. Van Hise. 1892. 4'-\ xi.x, 534 pp. Price $1.70. 



XX. Geologyof the Eureka District, Nevada, with an Atlas, by Arncdd Hague. 1.S92. 4 . xvii, 

 419 pp. 8 pi. Price $5.25. 



XXI. The Tertiary Klivnchophorous C'oleoptera of the United States, by Samuel Hubbard Scud- 

 der. 189."?. 4^. xi. 206]>p. 12 pi. Price 90 cents. 



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

 xiv. 300 ]ip. 18 pi. Price $1.00. 



XXIII. Geology of the Green Mountains in Ma.ssachusett8, by Raphael Pumpelly, T. Nelson Dale, 

 and J. E. Wolff. 1894. 4°. xiv, 206 pp. 23 pi. Price $1.30. 



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

 field. 1894. i-^'. 193 pp. 24 pi. Price 90 cents. 



XXV. The(;iaeialLakeAgassiz, by Warren Upham. 1895. 4^. xxiv,658pp. 38pl. Price$1.70. 



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

 Arthur Hollick. 1895. i. 260 pp. 58 pi! Price $1.00. 



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

 aniKieorge Hom.ins Eldridge. 1896. 4. 5.56 pp. 31 jd. Price $1..50. 



X.WIII. The Marijuette Iron-lJeariug District of Michigan, with Atlas, by C. R. Van Uise and 

 W. S. Ilayley, including a Chapter ou the Republic Trough, by C. L. Smyth. 1895. 4-. 608 pp. 35 

 pi. I'rice $5.75. 



J II preparation: 



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

 and Hampden Counties, bv Benjamin Kendall Emerson. 



XXX. Fossil Medusa-, by Charles Doolittle Walcott. 



XXXI. Geology of the Aspen Mining District, Colorailo, with .Vtlas, by Josiah Edward Spurr. 



XXXII. Getdogv of the Yellowstone National Park, Part II, Descriptive Geology, Petrography, 

 and Paleontology, by Arnold Hague, J. P. Iddings, W. Harvey Weed, Charles D. Walcott, G. H. Girty, 

 T. W. Stanton, au<l F. H. Knowlton. 



XXXIII. Geology of the Narragansett Basin, by N. S. Shaler, .1. B. Woodworth, and August F. 

 Foerste. 



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

 — Sauropoda, by O. C. Marsh. 



— Stegosauria, i>y O. C. Marsh. 



— Brontotherida;', by O. C. JIarsh. 



— Report on .'Silver Cliff and Tcu-Mih' Mining Districts. Colorado, by S. F. Emmons. 



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



