Elkton-Wilmington folio, Maryland-Delaware-New Jersey-Pennsylvania
Florence Bascom, Benjamin LeRoy Miller
1920, Folios of the Geologic Atlas 211
Mineral resources of the United States, 1917: Part II - Nonmetals
Hiram Dryer McCaskey, Gerald Francis Loughlin
1920, Report
No abstract available....
Forty-first annual report of the Director of the United States Geological Survey
George Otis Smith
1920, Annual Report 41
The appropriations for the public work under the United States Geological Survey for the fiscal year 1919-20 comprised items amounting to $1,586,353.50. In general the results of the varied activities of the Geological Survey may be regarded as meeting with a constantly increasing measure of public approval, as shown by the...
High-grade talc for gas burners
Joseph Silas Diller, J.G. Fairchild, E.S. Larsen
1920, Economic Geology (15) 665-673
No abstract available. ...
The r and s molybdenum mine, Toas County, New Mexico
E.S. Larsen, C. S. Ross
1920, Economic Geology (15) 567-573
No abstract available. ...
The use of the two-circle contact goniometer in teaching crystallography
Florence Bascom
1920, American Mineralogist (5) 45-50
The two-circle contact goniometer was devised to supplement the two-circle reflecting goniometer, by furnishing a means for the measurement of medium-sized crystals not provided with sufficiently good reflecting faces for the successful use of the latter instrument. The contact goniometer has however proved itself adapted, in a greater degree even...
The preparation of illustrations for reports of the United States Geological survey : with brief descriptions of processes of reproduction
John L. Ridgway
1920, Report
There has been an obvious need in the Geological Survey o£ a paper devoted wholly to illustrations. No complete paper on the character, use, and mode of preparation of illustration has been published by the Survey, though brief suggestions concerning certain features of their use have been printed in connection...
Hawaiian Volcano Observatory bulletins - 1920
1920, Report
The Hawaiian Volcano Observatory (HVO) Bulletin series was an informal publication issued between the years 1913 to 1929. Individual issues contain information on volcanic and earthquake activity, volcano research, and volcano monitoring in Hawaii, and issues often included photographs, sketches, and data plots. Information on volcanic activity at other locations...
Brannerite, a new uranium mineral
F. L. Hess, R. C. Wells
1920, Journal of the Franklin Institute (189) 225-237
No abstract available....
A Pocono brachiopod fauna
W. A. Price
1920, Science (51) 146-147
No abstract available....
Note on brannerite
R. C. Wells
1920, Journal of the Franklin Institute (189) 779-780
No abstract available....
The salt error of cresol red
R. C. Wells
1920, Journal of the American Chemical Society (42) 2160-2167
[No abstract available]...
A reconnaissance of the Pine Creek district, Idaho
E. L. Jones Jr.
1920, Bulletin 710-A
No abstract available....
The Porcupine gold placer district, Alaska
Henry Miner Eakin
1919, Bulletin 699
A catalogue of the Mesozoic and Cenozoic plants of North America
Frank Hall Knowlton
1919, Bulletin 696
Surface water supply of the United States, 1917, Part V, Hudson Bay and upper Mississippi River basin
Water Resources Division, U.S. Geological Survey
1919, Water Supply Paper 455
Upper Cretaceous floras of the eastern Gulf region in Tennessee, Mississippi, Alabama, and Georgia
E. W. Berry
1919, Professional Paper 112
Reptilian faunas of the Torrejon, Puerco, and underlying Upper Cretaceous formations of San Juan County, New Mexico
Charles W. Gilmore
1919, Professional Paper 119
Surface water supply of the United States, 1916, Part VI, Missouri River basin
Water Resources Division, U.S. Geological Survey
1919, Water Supply Paper 436
Geology and ground waters of the western part of San Diego County, California
Arthur Jackson Ellis, C.H. Lee
1919, Water Supply Paper 446
No abstract available....
Surface water supply of Hawaii : July 1, 1917 to June 30, 1918
Water Resources Division, U.S. Geological Survey
1919, Water Supply Paper 485
Surface water supply of the United States, 1916 : Part XII. North Pacific drainage basins : A. Pacific basins in Washington and upper Columbia River basin
Water Resources Division, U.S. Geological Survey
1919, Water Supply Paper 442
Surface water supply of the United States, 1916, Part IX, Colorado River basin
Water Resources Division, U.S. Geological Survey
1919, Water Supply Paper 439
Surface water supply of the United States, 1916 : Part X. The Great Basin
Water Resources Division, U.S. Geological Survey
1919, Water Supply Paper 440
Contributions to the hydrology of the United States, 1917
Nathan C. Grover
1919, Water Supply Paper 425
No abstract available....