The use of geology on the western front
A. H. Brooks
1921, Professional Paper 128-D
American species of Operculina and Heterostegina and their faunal relations; A new species of Orthophragmina from Louisiana
J.A. Cushman
1921, Professional Paper 128-E
The iron-ore resources of Europe
Max Roesler
1921, Bulletin 706
The microscopic determination of the nonopaque minerals
Esper S. Larsen Jr.
1921, Bulletin 679
Mineral resources of Alaska: Report on progress of investigations in 1919
Alfred H. Brooks
1921, Bulletin 714
No abstract available....
Preliminary report on petroleum in Alaska
George Curtis Martin
1921, Bulletin 719
Geology of the igneous rocks of Essex County, Massachusetts
C. H. Clapp
1921, Bulletin 704
No abstract available....
Geology and petroleum resources of northwestern Kern county, California
Walter Atheling English
1921, Bulletin 721
Mining developments in the Matanuska coal fields. Lode developments in the Willow Creek district
Theodore Chapin
1921, Bulletin 714-D
No abstract available....
Contributions to economic geology (short papers and preliminary reports), 1920 : Part II. - Mineral fuels
David White, Marius R. Campbell
1921, Bulletin 716
No abstract available....
Contributions to economic geology (short papers and preliminary reports) 1920.
F. L. Ransome, Hoyt Stoddard Gale, Ernest Francis Burchard
1921, Bulletin 715
The future of Alaska mining. The Alaskan mining industry in 1919
A. H. Brooks, George Curtis Martin
1921, Bulletin 714-A
No abstract available....
Lode mining in the Juneau and Ketchikan districts. Notes on the Salmon-Unuk River region. Water-power investigations in southeastern Alaska
J.B. Mertie Jr., G. H. Canfield
1921, Bulletin 714-B
No abstract available....
Mineral resources of the United States, 1918: Part I - Metals
Gerald Francis Loughlin
1921, Report
No abstract available....
Mineral resources of the United States, 1918: Part II - Nonmetals
Gerald Francis Loughlin, Ralph Walter Stone
1921, Report
No abstract available....
Mineral resources of the United States, 1917: Part I - Metals
Hiram Dryer McCaskey
1921, Report
No abstract available....
Forty-second annual report of the Director of the United States Geological Survey
George Otis Smith
1921, Annual Report 42
The direct appropriations for the work under the Geological Survey for the fiscal year 1921 comprised items amounting to $1,730,700. In addition $140,000, to be disbursed under the direction of the Public Printer, was appropriated for printing the reports of the Survey....
Plan and profile of Colorado River, Lees Ferry, Ariz., to mouth of Green River, Utah; San Juan River, mouth to Chinle Creek, Utah; and certain tributaries
1921, Report
Cycles of erosion in the Piedmont Province of Pennsylvania
Florence Bascom
1921, Journal of Geology (29) 540-559
No abstract available....
Hawaiian Volcano Observatory bulletins - 1921
1921, 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...
Hawaiian Volcano Observatory record book 1921
1921, Report
The Hawaiian Volcano Observatory (HVO) record books are annual journals in which field observations of eruptive activity at Kīlauea and Mauna Loa volcanoes, on the Island of Hawaiʻi, were compiled by HVO staff for most years from 1912 through early 1966. In addition to descriptive observations, the record books also...
Description of a new cisco from the Great Lakes
Walter N. Koelz
1921, Occasional Papers of the Museum of Zoology University of Michigan (104) 1-4
Abstract has not been submitted...
Ground water in the Southington-Granby area, Connecticut
Harold Schjoth Palmer
1921, Water Supply Paper 466
No abstract available....
Hydrometric work carried on in co-operation with the United States Geological Survey: Chapter 3 in Twelfth biennial report of the State Engineer to the governor of Utah: 1919-1920
A.B. Purton
1920, Utah State Engineer Biennial Report 12-3
The work of collecting stream flow data in Utah during the past two years has been continued under co-operative agreement between the State Engineer and the United States Geological Survey. Details of this agreement have been fully outlines in the previous reports of the State Engineer....
Preface; Administrative report; The Alaskan mining industry in 1918
G. C. Martin
1920, Bulletin 712-A
No abstract available....