ADVERTISEMENT. IH 



XXXIV. The Glacial Gravols of M:iino and their Associated Deposits, by George H. Stone. 



— The Latir Extinct Floras of North America, by .John Strong Newberry; edited bv Arthur 

 Holliek. 



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



— The Crystal Falls Iron-lieariug District of Michigan, by .1. Morgau Clements and Henry 

 Lloyd Smyth; with a Chapter on the Sturgeon Hiver Tongue, by William Shirley Bayley. 



— Sauropoda, by 0. C. Marsh. 



— Stegosanria, by O. C. Marsh. 



— Broutotheriidie, by O. C. Marsh. 



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



BULLETINS. 



1. On Hypersthene-Audesite and on Triclinic Pyroxene in Angitic Rocks, by Whitman Cross, 

 with a Geological Sketch of Bntialo Peaks, Colorado, by S. F. Emmuus. Ii<>i3. «' . 42 jip. 2 pi. 

 Price 10 cents. 



2. Gold and Silver Conversion Tables, giving the Coining Values of Troy Ounces of Fine 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 Bradford County, Pa., by Henry S. Williams. 1884. 8". 36 i)p. 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, compiled by Henry Gannett. 1884. 8^. 325 

 pp. Price 20 cents. 



6. Elevations in the Dominion of Canada, by J. W. Spencer. 1884. 8". 43 pp. Price 5 cents. 



7. Mapoteca Geologica Americana. A Catalogue of Geological Maps of America (North and 

 South), 1752-1881, in Geograi)hie and Chronologic Order, bv Jnles Marcou and John Belknap Marcou. 



1884. 8-. 184 lip. Price 10 cents. 



8. On Secondary Enlargements of Mineral Fragments in Certain Rocks, by R. D. Irving and 

 C. R. VanHise. 1884. 8^. 56 pp. 6 pi. Price Id cents. 



9. A Report of Work done in the Washington Laboratory during the Fiscal Year 1883-'84. F. W. 

 Clarke, Chief Cheiuist; T.M.Chatard, Assistant Chemist. 1884. 8°. 40 pp. Price 5 cents. 



10. On the Cambrian Faunas of North America. Preliminary Studies, by Charles Doolittle 

 Walcott. 1884. 8'^\ 74 pp. 10 pi. Price 5 cents. 



11. On the Quaternary and Recent Mollnsea of the Great Basin; with Description of New 

 Forms, bv R. Kllswortli Call. Intniclnced by a Sketch of the Quaternary Lakes of the Great Basin, 

 by G.K.Gilbert. Is,s4. S, (itl pp. 6 pL Price 5 cents. 



12. A Crystallograiihie Study of the Thinolite of Lake Lahontan, by Edward S. Dana. 1884. 8°. 

 34 pp. 3 pi. Price 5 cents. 



13. Boundaries of the United States and of the Several States and Territories, with a Historical 

 Sketch of the Territorial Changes, by Henry Gannett. 1885. 8-^. 135 pp. Price 10 cents. 



14. The Electrical and Mimiietie Properties of the Iron-Carburets, by Carl Barns and Vincent 

 Strouhal. 1885. 8"^. 238 pp. I'rice 15 cents. 



15. On the Mesozoic and Ceuozoic Paleontology of California, by Charles A. White. 1885. 8°. 

 33 pp. Price 5 cents. 



16. On the Higher Devonian Faunas of Ontario County, New York, by ,John M. Clarke. 1885. 8°. 

 86 pp. 3 pi. Price 5 cents. 



17. On the Development of Crystallization in the Igneous Rocks of Washoe, Nevada, with Notes 

 on the Geology of the District, by Arnold Hague and Joseph P. Iddings. 1885. 8°. 44 pp. Price 5 

 cents. 



18. On Marine Eocene, Fresh- Water Jliocene, and other Fossil MoUusca of Western North 

 America, by Charles A. White. 18,s."i. S . 26 p]i. 3 pi. Price 5 cents. 



19. Noteson theStratigraiihy of California, by GeorgeF. Becker. 1885. S'^. 28pp. Price5cent8. 



20. Contributions to the Mineralogy of the Rockv Mountains, by AVhitmaii Cross and VV. F. Hille- 

 brand. 188,5. 8-. 114 j.p. 1 pi. Price 10 cents. 



21. The Lignites of the Great Sioux Reservation; a Report on the Region between the Grand 

 and Moreau Rivers, Dakota, by Bailey Willis. 1885. 8'=. 16 pp. 5 pi. Price 5 cents. 



22. On New Cretaceous Fossils from California, by Charles A. White. 1885. 8". 25 pp. 5 pi. 

 Price 5 cents. 



23. Observations on the Junction between the Eastern Sandstone and the Keweenaw Series on 

 Keweenaw Point, Lake Superior, by R. D. Irving and T. C. Chamberlin. 1885. 8'-\ 124 pp. 17 pi. 

 Price 15 cents. 



24. Listof Marine Molluscn.comprising the Quaternary Fossils andRecent Forms from American 

 Localities between Cape Hatteras and Cape Rotiue, including the Bermud.as, by William Healev l>all. 



1885. 8--. 336 pp. Price 25 cents. 



25. The Present Technical Condition of the Steel Induslry of the United States, by I'hineas 

 Barnes. 1885. 8^. 85 pp. Price 10 cents. 



26. Copper Smelting, by Henry M. Howe. 1885. 8°. 107 pp. Price 10 cents. 



27. Report of Work done in the Division of Chemistry and Phvsics, mainly doling the Fiscal Year 

 1884-85. 1886. 8^. 80 pp. Price 10 cents. 



28. The Gabbros and Associated Hornldende Rocks occurring in the Neighborhood of B.iltimore, 

 Maryland, by George Huntington Williams. 1886. 8^. 78 pp. 4 pi. Price 10 cents. 



