ADVEKTISEMENT. 



BULLETINS. 



1. On Hyperstheue-Aiidesite and on Tricliuic Pyroxeuo in Au<;itic Rocks, by "Whitman Cross, 

 ■with a Geological Sketch of Buffalo Peaks, Colorado, \>y S. F. Euinions. 1883. 8^. 12 i)p. 2 jil. 

 Price 10 cents. 



2. Gold and . Si Ivor Con vprsi on Tables, giving the Coining Values of Troy Ounces of Fine Metal, 

 etc., computed by All. .11 Willi.n.is, jr. 1«8.S. 8-. 8 pp. Price .^ cents. 



3. On the F..N^il laniKis ,,| tlic Upper Devonian, along the Meridian of 7G° 30', from Tompkins 

 County, N. Y., to lira.lL.i .1 ( ..iint.N , l"a., 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, compiled by Henry Gannett. 1884. S°. .325 

 pp. Price 20 cents. 



6. Elevations in the Dominion of Canada, by .7. 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 Geographic and Chronologic Order, by Jules Marcou and .lohn Belknap Slarcou. 



1884. 8^. 184 lip Price 10 cents. 



8. On Secondary Enlargements of Mineral Fragments in Certain Rocks, liy 1{. 1). Irvini>- and C. 

 R. Van Hise. 1884. S"^. 56 pp. 6 pi. Price 10 cents. 



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

 Clarke, Chief Chemist; T.M.(.'lKit:ir.l, assistant chemist. 1884. 8". 40 pp. Price 5 cents. 



10. On the Cambrian I'aunas i.f Xi.i i li America. I'relimiuary Studies, by Charles Doolittle Wal- 

 cott. 1884. 8°. 74 pp. 10 pi. I'rice 5 cents. 



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

 Forms, by R. Ellsworth Call. Introduced bv a Sketch of the Quaternary Lakes of the Great Basin, 

 by G. K. Gilbert. 1884. 8°. 66 pp. 6 pi. Price 5 cents. 



12. A Crystallographic 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 Magnetic Properties of the Iron-Carburets, by Carl Barus and Vincent 

 Strouhal. 1885. 8°. 238 pp. Price 15 cents. 



15. On the Mesozoic and Cenozoic 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 Miocene, and other Fossil Mollusca of Western North America, 

 by Charles A. NVliite. 1885. S^. 26 pp. 3 pi. Price 5 cents. 



19. Notes on the Stratigraphy of California, by George F.Becker. 1885. 8^^. 28 pp. Price 5 cents. 



20. Contributions to tlic .Mineralogy of the Rocky Mountains, by \\Tiitman Cross and W. F. Hille- 

 brand. 1885. 8'='. 114 pp. 1 i>l. Price" 10 cents. 



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

 and Moreau Rivers, Dakota, by Bailey AVillis. 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 .Scries on 

 Keweenaw Point, Lake Superior, by R. D. Irving and T. C. Chamberlin. 1885. 8^. 124 pp. 17 pi. 

 Price 15 cents. 



24. List of Marine Mollusca, comprising the Quaternary fossils and Recent Forms from American 

 Localities between Cape Hatteras and Cape Roque, including the Bermudas, by William Healey Dall. 



1885. 8°. 336 pp. Price 25 cents. 



25. The Present Technical Condition of the Steel Industry of the United States, by Phineas 

 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 Chemistrv and Phvsics, mainly during the Fiscal Year 

 1884-'85. 1886. 8°. 80 pp. Price 10 c.-nts. 



28. The Gabbros and Associated Hornblende Rocks occurring in the Neighborhood of Baltimore, 

 Md., by George Huntington Williams. 1886. 8°. 78 pp. 4 pi. Price 10 cents. 



29. On the Fresh- water Invertebrates of the North American Jurassic, byCharles A. White. 1886. 

 8'^. 41 ])p. 4 pi. Price 5 cents. 



30. Second Contribution to the Studies on the Cambrian Faunas of North America, by Charles 

 Doolittle Walcott. 1886. 8-^. 369 pp. 33 pi. Price 25 cents. 



31. Systematic Review of our Present Knowledge of Fossil Insects, including Myriapods and 

 Arachnids, by Samuel Hubbard Scudder. 1886. 8". 128 pp. Price 15 cents. 



32. Lists and Analyses of the Mineral Springs of the United States; a Prelimiuarv Study, bv 

 Albert C. Peale. 1886. 8°. 235 pp. Price 20 cents. 



33. NotesontheGeologyofNortheruCalirornia,byJ.S.Dillcr. 1886. 8^. 23 pj). Price5ceuts. 



34. On the Relation of the Laramie Molluscan Fauna to that of the Succeeding Fresh-water Eocene 

 and Other Groups, by Charles A. White. 1886. 8°. 54 pp. 5 pi. Price 10 cents. 



MON XXVIII 40 



