II ADVERTISEMENT. 



M( »N< (GRAPHS. 



I. Lake Bonneville, by Grove Karl Gilbert. 1890. 4°. xx, 438 pp. 51 pi. 1 map. Price $1.50. 



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

 lN.si'. 4. 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. Becker. 

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



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



V. The Copper-Bearing Pocks of Lake Superior, by Roland Dner Irving. 1883. 4-. xvi, 404 

 pp. 151. 20 pi. and maps. Price $1.85. 



VI. Contributions- to the Knowledge of the Older Mesozoic Flora of Virginia, by William Morris 

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



VII. Silver-Lead Deposits of Eureka, Nevada. I>v .Joseph Story Curtis. 1884. 4 C . xiii, 200 pp. 

 16 pi. Price $1.20. 



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

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



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

 Jersey, by Robert P. Whitfield. 1885. 4. xx,338pp. 35 pi. 1 map. Price $1.15. 



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

 Marsh. 1880. 4°. xviii, 243pp. 561. 50 pi. Price $2.70. 



XI. Geological History of Lake Lahontan, 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. 1880. I . ' 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, by George F. Becker. 

 1888. 4 . xix. ISO pp. 7 pi. and atlas of 14 sheets folio. Trice $2. mi. 



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

 Valley, by John S. Newberry. 1888. 4-. xiv, 152 pp. 20 pi. Price $1.00. 



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

 377 pp. ISO 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, bv Leo Lesquereux. Edited by 

 F. II. Knowlton. 1891. 4°. 400 pp. 00 pi. Price $1.10. 



XVIII. Gasteropoda and ( lephalopoda of the Raritan ( 'lays and Greensand Marls of New Jersey, 

 by Robert P. Whitfield. 1891. I. 402pp. 50pl. Price $1. no. 



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

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



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

 419 pp. 8 pi. Price $5.25. 



XXI. The Tertiary Khynchophorous Coleoptera of the United states, by Samuel Hubbard Scud- 

 der. 1893. 1 . xi, 206* pp. 12 pi. Price 90 cents. 



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

 xiv. 301) pp. is pi. Price $1.00. 



XX I II. Geology of the Green Mountains in Massachusetts, by Raphael Pumpelly, T. Nelson Dale, 

 and J. E. Wolff. 1891. 4. xiv, 206 pp. 23 pi. Price $1.30. 



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

 field. 1894. 1 . 103 pp. 24 pi. I'i ice iki cents. 



XXV. ThoGlacial Lake Agassi/., hy Warren Upham. 1895. 4°. xxiv, 658 pp. 38 pi. Price $1.70. 



XXVI. Flora of the Amboy Clavs, bj John strong Newberry; a I' sthumoue Work, edited by 

 Arthur llolhck. 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. 1890. I . 556 pp. 31 pi. Price $1.50. 



XXVIII. The Marquette Iron-Bearing District of Michigan, with Atlas, by C. R. Van Hise and 

 W. S. Bayley, including a Chapter on the Republic Trough, by H. L. Smyth. 1895. 1 . 008 pp. 35 

 pi. Price $5.75. 



XXX. Fossil Medusas, by Charles Doolittle Walcott. 1898. I . ix,201pp. 47 pi. Price $1.50. 



In preparation: 



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

 and Hampden Counties, by Benjamin Kendall Emerson. 



XXXI. Geology of the Aspen Mining District, Colorado, with Atlas, by Josiali Edward Spnrr. 



XXXII. Geology 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, and F. il. Knowlton. 



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

 Foerste. 



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

 — Sauropoda, by •>. C. .Marsh. 



— Stegosauria, by O. C. Marsh. 



— Broutotheridse, by O. C. Marsh. 



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



— Flora of the Lower Coal Measures of Missouri, by David White. 



— Later Extinct Floras of North America, by John Strong Newberry ; edited by Arthur Hollick. 



