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li. Elevations in tlic Dominion of Canada, by J. W. Spencer. 1884. 8°. 43 pj>. Price Scents. 



7. Mapoteca Geologies Americana. A Catalogue of Geological Maps of An erica (North and 

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1884. 8 . 184 pp. Price 10 cents. 



8. <>u Secondary Enlargements of Mineral Fragments in Certain Rocks, by R. D. Irving and C. 

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9. A Report of work done in the Washington Laboratory during the fiscal year 1883-'84. F.W. 

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10. < In the Cambrian Faunas of North America. Preliminary studies, by Charles Doolittle Wal- 

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11. On the Quaternary and Recent Mollusea of the Great Basin; with Descriptions of New 

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

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

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

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

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It;. On the Higher Devonian Faunas of Ontario County, New ifork,bj John M. Clarke. 1885. 8°. 

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17. On tin- Development of Crystallizat ion in tin- Igneous Rocks of Washoe. Nevada, with Notes 

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18. On Marine Eocene, Fresh-water Miocene, and other Fossil Mollusea of Western North America, 

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19. Notes on the Stratigraphy of California, by George F. Becker. 1885. 8 . 28pp. Price5cents. 



20. Contribntions to tin- Mineralogy id' the Rocky Mountains, by Whitman ( 'ross and W. F. Hille- 

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21. The Lignites of the Creat Sioux Reservation. A Report on the Region between tin- Grand 

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

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

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24. List of Marine Mollusea, comprising the Quaternary fossils and recent forms from American 

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1885. 8°. 336 pp. Price 25 cents. 



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

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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 Physics, mainly during the fiscal year 

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

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29. <>n theFresh- water Invertebrates of the North American Jurassic, by Charles A. White. 1886. 

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

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

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32. Lists and Analyses of the Mineral .Springs of the United States; a Preliminary Study, by 

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33. Notes on the Geology of Northern California, by J. S. Diller. 1886. 8 . 23 pp. PriceScents. 



34. On the relation of the Laramie Molluscan Fauna to that of the succeeding Fresh-water Eocene 

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35. Physical Properties of the Iron-Carburets, by Carl Barns and Vincent Strouhal. 1880. 8°. 

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30. Subsidence ofFine Solid Particles in Liquids, bv Carl Barus. 1886. 8 . 58pp. PricelOcents. 



37. Types of the Laramie Flora, by Lester F.Ward. 1887. 8°. 351pp. 57 pi. Price 25 cents. 



38. Peridotiteof Elliott County. Kentucky. hy.l.S. Diller. 1887. 8°. 31pp. I pi. Price5cents. 



39. The Upper Beaches anil Deltas of the Claeial.Lakc Agassiz. by Warren Upham. 1887. 8°. 

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10. Changes in River Courses in Washington Territory due to Glaciation, by Bailey Willis. 1SS7. 

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41. On the Fossil Faunas of the Upper Devonian — the Genesee Section, New York, by Henry S. 

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