II ADVERTISEMENT. 



MONOGRAPHS. 



I. Lalco Bonneville, liy Grove Karl Gilbert. 1890. i°. xx, 438 pp. .51 pi. 1 map. Price IL.'iO. 



II. Tertiiiry HistoiT Di'the Grauil Canon District, with atlas, by Clarence E. Duttou, Capt., U. S. A. 

 1882. 4°. xiv, 2G4 pp. 'i2 pi. and atlas of 24 sheets folio. Price $10.00. 



III. Geology of the Coiiistock Lodo and tin- Washoe District, with atlas, by George F. Becker. 

 1882. 4°. XV, 422pi>. 7 pi. and atlas of 21 .sheets folio. Price •■Jill. 00. 



IV. Comstock Mining and Miners, by Eliot Lord. 1X88. 4^. xiv, 451 pp. 3 pi. Price $1.50. 



V. The Cdpiicv-I'Haring Ifocks of Lake Superior, by Roland Duer Irving. 1883. 4-. xvi, 464 

 pp. 15 1. 2i) pi. and maps. ' I'rirr $1..S5. 



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

 Fontaine. 1883. 4^'. xi, 144 iip. 54 1. .54 pi. Price $1.05. 



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

 16 pi. Price $1.20. 



VIII. Paleonttdogv 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 Greensaud Marls of New 

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



X. Dinocerata. A Monograph of an Extinct Order of Gigantic Mammals, by Othniel Clmrles 

 Mar.sh. 1886. 4°. xviii, 243 ]>p. 561. .56 pi. Price $2.70. 



XI. Geological History of Lake Lahontan, a Quaternary Lake of Northwestern Nev.ada, by 

 Israel Cook Rnsscll. 1S,S5. ' 1 . xiv. 288 pp. 46 ]d. and maps. Price $1.75. 



XII. (ieology and Mining Industry of Lcadville, Colorado, with atlas, by Samuel Fr.anklin Em- 

 mons. 1886. 4^. ■ xxix, 770 pp. 45 ph'and atlas id 35 sliicts folio. Price $8.40. 



XIII. Geology of the Quicksilvi^r De]iosits of tin' I^Hilic Sbi]io. with .atlas, bv George F. Becker. 

 1888. 4^. xix, 486 pp. 7 pi. and atlas of 14 .sheets loin., rricu $2.00. 



XIV. Fo,ssll Fishes and Fossil Plants of the ■i'ria.s.sic Kocks of New Jersey and the Connecticut 

 Valley, by John S. Newberry. 1888. i\ xiv, 152 i>p. 26 pi. Price $1.00. 



XV. The Potonia<' or Younger Mesozoic Flor.a, by William Morris Fontaine. 1889. 4-. xiv, 

 377 pp. 180 pi. Text and plates'lionnd 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 Gronji, a posthumous work, bv Leo Lesiiucreux. Edited by F. 

 H. Knowlton. 1891. 4> . 400 pp. 66 pi. Price $1.10. 



XVIII. (iasteropiida aiid ('ejjhalopoda of the Raritan Clays .and (irecnsand Marls of New Jersey, 

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



XIX. The Pein)kei- Iron-liciring Scries of Northern Wisconsin and Michigan, by Roland D. 

 Irving and C. R. Van 11 ise. I,sii2. I . xix, 534 pp. Price $1.70. 



XX. Geology of the Knndca I listriet. Nevada, with an atlas, by Arnold Hagne. 1892. 4^^. xvii, 

 419 pp. 8 pi. Price $5.25. 



XXI. The Tertiarv Rhynchophorons Coleoptera of the United .States, bv Samuel Hubbard Scud- 

 der. 1893. 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 Rajihael Pumpellv, T. Nelson Dale, 

 .and J. E. Wolff. 1894. i^. xiv, 206 pp. 23 pi. Price .$1.30. 



XXIV. Mollusca and Crustacea of the Miocene Formations of New Jer.sev. bv Robert Parr Whit- 

 field. 1894. 4=. 193 pp. 24 pi. Price 90 cents. 



XXV. TheGlacialLakeAgassiz, by Warren Uphani. 1895. 4^. xxiv, 658 pp. 3Xpl. Price $1.70. 



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

 Arthur llollick. 



In preparation : 



— The Geology of Franklin. HauLpshire. and Hampden counties, Massachusetts, by Benjamin 



Kendall Emerson. 

 — The Glacial Gravels of Maine and their associated deposits, by George H. Stone. 

 —Geology of the Denver Basin, Colorado, by S. F. Emmons, Wliitmau Cross, and Geo. H. Ehlridge. 

 — Saurojioda, by O. C. Marsh. 

 — Stegosanria., bv 0. C. Marsh. 

 — Brontotherida!", by O. C. Marsh. 

 — Report on Silver Cliff and Ten-Mile Mining Districts, C<iloriwlo, liy S. F. Emmons. 



BULLETINS. 



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

 with a (ieolog'ical 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 fine met.il, 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. v., to Bradford County, Pa., by Henry S. Williams. 1884. 8". 36 pp. Price 5 cents. 



'4. On Mesozoic Fossils, by Charles A. AVhitc. 1,S84. .S' . 36 pp. 9 pi. Price 5 cents. 

 5. A Dictionary of Altitudes in the I'nited States, compiled by Henry Gannett. 1884. 8-. 325 

 pp. Price 20 cents. 



