II ADVERTISEMENT. 



MONOGRAPHS. 



I. Lako Ronnovillo, liy r.rovo Karl r.ilbort. 1890. 4°. xx, 43S pp. ,51 pi. 1 map. Price $1.50. 



II. Tertiary Hi.storv oVi lie ( ;r:ni(l ( 'anon District, witli atlas, liv Clarence E. Dutton, C'apt., U. S. A. 

 1882. 4". .xiv, f64pp. 41' pi. .ind atlas nf 21 sliccts Inlid. I'ricc- ^10.00. 



III. Geology of the Coiiislock Lode and tlic Washoe District, with atlas, liy George F. Becker. 

 1882. 4^'. .\v, 422pp, 7 pi. aiul atlas of21 sheds folio. Price $11.00. 



IV. Comstock Mining and Miuers, liy Eliot Lord. 188H. 4^, xiv, 451 pp. 3 pi. Price $1.50. 



V. The Copper-Bearing Rocks of LaUe .Snperior, by Roland Duer Irving. IHH'S. 4^'. xvi, 4()4 

 pp. 15 1, 29 pi. and maps. Price $1.85, 



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

 Fontaine, 1883. 4*^. xi, 144 pp. 54 1. .54 id. Price $1.05. 



VII. ."Silver-Lead Deposits of Eureka, Nevada, by .loseph Storv Curtis. 18iS4. 4^. xiii, 200 pp. 

 16 pi. Price $1,20. 



VIII. l'aleont(dogv of the Eureka District, by Charles Doolittle Walcott. 1884. 4^. xiii, 298 

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



IX. Brachiopoda and Lamellibranchiata of the Earitan Clays and Greensaud Marls of Nc^w 

 Jersey, by Robert P. Whittield. 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. 1880. 4". xviii, 243 pp. 56 1. 56 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 Industrv of Lcadville. Colorado, with atlas, bv Samuel Franklin Em- 

 mons. 1886. 4*^. ' xxix, 770 pp. 4.5 pi, and atlas of:;.-, sheets folio. Price $8.40. 



XIII. Geology of the Quicksilver Deposits of the Pacific Slojie, with atlas, by 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. i°. 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 ))lates 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 Diikota Group, a posthumous work, by Leo Lesquereux, Edited by F, 

 H. Knowlton. 1891, 4'^'. 400 pp. 66 pi. Price $1.10. 



XVIII. Gasteropoda and Cephaloiioda of the Raritan Clays and Greensaud Marls of New Jersey, 

 by R(d>ert P. Whittield. 18!il, 4, 402 pp, 50 pi. Price $L00. 



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", xvii, 

 419 pp. 8 pi. Price $5.25. 



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

 der. 1893. i°. xi, 20(i p]'. ' 12 id. Price 90 cents. 



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

 XIV, 300 pp. 18 pi. I'rice $1.00. 



XXIII. Geology of the Green Mountains in Massachusetts, by Raphael Pumitelly, T. Nelson Dale, 

 and J. E. Woltf. 1894. 4°. xiv, 206 pp. 23 pi. Price $L 30. 



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

 field. 1894. 4'^. 193 pp. 24 pi. Price 90 cents. 



In preparation : 



— Sauropoila, by O. C. Marsh. 



— Stegosaiiria, liy O. 0. Marsh. 



— BrontotheridsE, by O. C. Marsh. 



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



— Ri'port (m Silver Cliliand Ten-Mile Mining Districts, Colorado, by S. F. Einuions. 



. — The Glacial Lake Agassiz, by Warren Upham, 



BULLETINS. 



1. On Hypersthene-Andesite and on Tricliuic Pyroxene in Augitic Rocks, by Whitman Cross, 

 with a Geological Sketch of Buffalo Peaks, Colorado, by S. F. Emmons, 1883, 8*^, 42 pp, 2 pi. 

 Price 10 cents. 



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

 computed by Albert Williams, jr. 1883. 8°. 8 pp. Price 5 cents. 



3. On the Fossil Faunas of the Upper Devonian, along the meridian of 76"^ 30', from Tompkins 

 County, N. Y,, to Bradlbrd Countv, Pa,, by Henry S, Williams. 1884. 8°. 36 pp. Price 5 cents. 



4. On Mesozoic Fossils, by Charles A. White. 1884. 8-\ 36 pp. 9 pi. Price 5 cents. 



5. A Dictionary of Altitudes in the United .States, com])iled by Henry Gannett. 1884, 8^. 325 

 pp. Price 20 cents. 



