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On the fresh-water invertebrates of the North American Jurassic
Important additions having lately been made to our knowledge of the fresh-water invertebrates of the North American Jurassic strata, I have thought it desirable to present not only descriptions and figures of the new forms in this bulletin, but to make the publication an illustrated synopsis of all the forms yet discovered. I therefore reproduce on the accompanying plates figures of all the specie
Authors
Charles A. White
On the organization of scientific work of the general government
Extracts from the testimony taken by the Joint commission of the Senate and House of representatives to "consider the present organizations of the Signal service, Geological survey, Coast and geodetic survey, and the Hydrographic office of the Navy department, with the view to secure greater efficiency and economy of administration."
Authors
John Wesley Powell
On the relation of the Laramie molluscan fauna to that of the succeeding fresh-water Eocene, and other groups
No abstract available.
Authors
Charles A. White
Physical properties of the iron-carburets (third paper)
No abstract available.
Authors
Carl Barus, Vincent Strouhal
Report of work done in the division of chemistry and physics mainly during the fiscal year 1884-85
The present bulletin contains some of the more important results obtained in the chemical laboratory of the United States Geological Survey during the fiscal year 1884—'85. It also contains two physical papers representing work which was mainly done during previous fiscal years, but completed during the one for which this bulletin is issued. These papers are practically continuations of or supplem
Authors
Frank Wigglesworth Clarke
Second contribution to the studies on the Cambrian faunas of North America
Herewith I have the honor to transmit the Second of my preliminary studies on the Cambrian Faunas of North America. The larger portion of the report was ready for publication July 7, 1885, but, having visited a number of localities in Utah and Nevada during the season of 1885, numerous additions have been made to both the text and the plates.Very respectfully,CHARLES D. WALCOTT.
Authors
Charles D. Walcott
Systematic review of our present knowledge of fossil insects, including myriapods and arachnids
No abstract available.
Authors
Samuel Hubbard Scudder
The gabbros and associated hornblende rocks occurring in the neighborhood of Baltimore, Maryland
Considerable attention has been devoted during late years to the metamorphism of igneous rocks, and it can now be regarded as placed beyond reasonable doubt that such rocks may be changed to more or less schistose masses, which often closely resemble crystallized sediments. This possibility has heretofore been largely ignored, owing doubtless to the extensive obliteration of those characteristics
Authors
George Huntington Williams
Boundaries of the United States and of the several States and Territories, with a historical sketch of the territorial changes
No abstract available.
Authors
Henry Gannett