Geology of the igneous rocks of Essex County, Massachusetts
C. H. Clapp
1921, Bulletin 704
No abstract available....
Lower Miocene Foraminifera of Florida
J.A. Cushman
1921, Professional Paper 128-B
The iron-ore resources of Europe
Max Roesler
1921, Bulletin 706
Contributions to economic geology, 1920, Part I, Metals and nonmetals except fuels--Potash deposits in Spain
H. S. Gale
1921, Bulletin 715-A
Surface water supply of the United States, 1917, Part IX, Colorado River basin
Water Resources Division, U.S. Geological Survey
1921, Water Supply Paper 459
Ground water in Lanfair Valley, California
D. G. Thompson
1921, Water Supply Paper 450-B
Geology and water resources of the Gila and San Carlos valleys in the San Carlos Indian Reservation, Arizona
A.T. Schwennesen
1921, Water Supply Paper 450-A
Contributions to economic geology, 1920, Part II, Mineral fuels--Coal in the middle and eastern parts of San Juan County, New Mexico
C. M. Bauer, J.B. Reeside Jr.
1921, Bulletin 716-G
Contributions to economic geology, 1920, Part II, Mineral fuels--Character of coal in the Thomas bed near Harrison, West Virginia
M. R. Campbell
1921, Bulletin 716-H
Routes to desert watering places in the Mohave Desert Region, California
1921, Water Supply Paper 490-B
No abstract available. ...
Contributions to economic geology, 1920, Part I, Metals and nonmetals except fuels--Iron-ore deposits near Stanford, Montana
L.G. Westgate
1921, Bulletin 715-F
Contributions to economic geology, 1920, Part I, Metals and nonmetals except fuels--The Mogollon district, New Mexico
H.G. Ferguson
1921, Bulletin 715-L
Contributions to economic geology, 1920, Part I, Metals and nonmetals except fuels--The Divide silver district, Nevada
Adolph Knopf
1921, Bulletin 715-K
Contributions to economic geology, 1920, Part I, Metals and nonmetals except fuels--Some deposits of manganese ore in Colorado
E. L. Jones Jr.
1921, Bulletin 715-D
Contributions to economic geology, 1920, Part I, Metals and nonmetals except fuels--A deposit of manganese ore in Wyoming
E. L. Jones Jr.
1921, Bulletin 715-C
Contributions to the hydrology of the United States, 1919
Nathan C. Grover
1921, Water Supply Paper 450
The microscopic determination of the nonopaque minerals
Esper S. Larsen Jr.
1921, Bulletin 679
Preliminary report on petroleum in Alaska
George Curtis Martin
1921, Bulletin 719
Surface water supply of the United States, 1917, Part VI, Missouri River basin
Nathan C. Grover, W.A. Lamb, Robert Follansbee
1921, Water Supply Paper 456
Surface water supply of the United States, 1918, Part VI, Missouri River basin
Water Resources Division, U.S. Geological Survey
1921, Water Supply Paper 476
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....
The New Salem lignite field, Morton County, North Dakota
Eugene T. Hancock
1921, Bulletin 726-A
No abstract available....
Contributions to economic geology, 1920, Part II, Mineral fuels--The Mule Creek oil field, Wyoming
E.T. Hancock
1921, Bulletin 716-C
Geology of the Cement oil field, Caddo County, Oklahoma
Frank Reeves
1921, Bulletin 726-B
No abstract available....
Geology and petroleum resources of northwestern Kern county, California
Walter Atheling English
1921, Bulletin 721