II ADVERTISEMENT. 



MONOGBAPHS. 



I. Lake Bonneville, l)y Grove Karl Gilbert. 1890. 4°. xx, 438 pp. 6] pi. 1 map. Price $1.60. 



II. Tertiary History of the Grand Canon District, witli atlas, by Clarence E. Button, Capt. V. S. A. 

 1882. 4°. xiv, 264 pp. 42 pi. and atlas of 24 sheets folio. Price $10.00. 



HI. Geology of the Comstock Lode and the "W"ashoe District, with atlas, by George 3?. Becker. 1882. 

 40. 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, 461 pp. 3 pi. Price $1.50. 



T. The Copper-Bearing Hooks ot Lake Superior, by Eoland Duer Irving. 1883. 4°. xvi, 464 pp. 

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



VI. Contributions to the Knowledge of the Older Mesozoio Flora of Virginia, by 'WiUiam Morris 

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



VII. Silver-Lead Deposits of Eureka, Nevada, by Joseph Story Curtis. 1884. 4°. xiii, 200 pp. 16 

 pi. Price $1.20. 



Vm. Paleontology of the Eureka District, by Charles Doolittle Waloott. 1884. 4°. xiii, 298 pp. 

 24]. 24 pi. Price $1.10. 



IX. Brachiopoda and Lamellibranchiata of the Earitan Clays and Greensand Marls of New Jersey, 

 byEobert P. "Whitfield. 1886. i°. xx, 338 pp. 35 pi. 1 map. Price $1.15. 



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

 1886. 4°. xviii, 243 pp. 561. 66 pi. Price $2.70. 



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

 CookEussell. 1885. 4°. xiv, 288 pp. 46 pi. and maps. Price $1.76. 



Xn . Geology and Mining Industry of Leadville, Colorado, with atlas, by Samuel IVanklin Emmons. 

 1886. 4°. xxix, 770 pp. 45 pi. and atlas of 36 sheets folio. Price $8.40. 



XIII. Geology of the Quicksilver Deposits of the Pacific Slope, with atlas, by George E. Becker. 

 1888. 40. xix, 486 pp. 7 pi. and atlas of 14 sheets folio. Price $2.00. 



XrV. Fossil Pishes and Fossil Plants of the Triassic Eocks of New Jersey and the Connecticut Val- 

 ley, 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°. 340pp. 53pl. 

 Price $1.00. 



XVH. The Flora of the Dakota Group, a posthumous work, hy Leo Lesquereux. Edited by F. H. 

 Knowlton. 1891. 4°. 400 pp. 66 pi. Price $1.10. 



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

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



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

 andC.E VanHise. 1892. i°. xix, 634 pp. 37 pi. Price $1.70. 



XX. Geology of the Eureka District, Nevada, with atlaa, by -Arnold Hague. 1892. 4°. xvii, 419 pp. 

 8 pi. Price $5.25. 



XXI. The Tertiary Ehynohophorous Coleoptera of North America, hy Samuel Hubbard Soudder. 



1893. 4°. xi, 206 pp. 18 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. 



XXin. Geology of the Green Mountains in Massachusetts, by Eaphael Pumpelly, J. E. Wolff 

 and T. Nelson Dale. 189-4. 4°. xiv, 206 pp. 23 pi. Price $1.30. 



XXIV. Mollnsca and Crustacea of the Miocene Formations of New Jersey, by Eobert Parr Whitfield. 



1894. 4°. 195 pp. 24 pi. Price 00 cents. 

 In press : 



XXV. The Glacial Lake Agaaslz, by Warren Upham. 1896. 4°. xxiv, 658 pp. 38 pi. 



XXVI. Flora of the -Amboy Clays, by John Strong Newberry; a posthiimous work, edited by 

 Arthur HoUick. 1895. 4°. 260 pp. 68 pi. 



XXVn. Geology of the Denver Basin, Colorado, hy S. F. Emmons, Whitman Cross, and George H. 

 Eldridge. 

 Jn preparation : 



— The Marquette Iron-Bearing District of Michigan, by C. E. Van Hise and W. S. Bayley, with a 

 chapter on the Eepublic Trough, by H. L. Smyth. 



— The Geology of Franklin, Hampshire, and Hampden counties, Massachusetts, by Benjamin Ken- 

 dall Emerson- 



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



— Geology of the Narragansett Basin, by N. S. Staler, J. B. Woodworth, and August F. Foerste. 



— Fossil MedusBB, by C. D. Walcott. 



— Sauropoda, by 0. C. Marsh. 



— Stegosauria, by 0. C. Marsh. 



— Brontotherida;, by O. C. Marsh. 



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



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



