ADVERTISEMENT. Ill 



BTJLLBTIirS. 



1. On Hypersthene-Andesite and on Triclinio Pyroxene in Augitio Books, by "WTiitman Cross, with a 

 GeologicalSketchof 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 value of troy ounce.i of fine metal, etc., com- 

 puted by Albert Williams, Jr. 1883. 8°. 8 pp. Price 6 cents. 



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

 New York, to Bradford County, Pennsylvania, 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. 18S4. 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 geographic and chronologic order, by Jules Marcou and John Belknap Marcou. 1884. 

 8°. 184 pp. Price 10 cents. 



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

 VanHise. 1384. 8°. 56 pp. 6 pi. Price 10 cents. 



9. A report of work done in the "Washington Laboratory during the fiscal year 1883-'84. F. W. Clarke, 

 chief chemist. 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 MoUusoa of the Great Basin ; with Descriptions of New Forms, 

 by E. Ellsworth Call. Introduced by a sketch of the Quaternary Lakes of the Great Eaein, by G. K. 

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



12. A Crystallographio 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 Barns and Tincent 

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



15. On tlie Mesozoic and Cenozoio 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°. 

 86pp. 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. "White. 1883. 8°. 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 the Mineralogy of the Rooky Mountains, by "Whitman Cross and W. F. Hille- 

 brand. 1885. 8°. 114 pp. 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 Scents. 



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

 Eeweenaw 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, includingthe Bermudas, by "William Healy 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 Chemistry and Physics, mainly during the fiscal year 

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



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

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



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

 8°. 41pp. 4 pi. Price 5 cents. 



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

 little "Walcott. 1886. 8°. 369 pp. 33 pi. Price 25 cents. 



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

 nids, by Samuel Htibbard Scudder. 1886. 8°. 128 pp. Price 15 cents. 



32. Lists and Analyses of the Miner.al Springs of the United States (a Preliminary Study), by Albert 

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



