Author
Geological Survey (U.S.),
48
Marshall, R. B. 1867-1949,
Kentucky Geological Survey,
2
New York (State). State Engineer and Surveyor,
2
Geological Survey of Alabama,
1
Harris County (Tex.),
1
Hawaii,
1
Illinois State Geological Survey,
1
Iowa,
1
Lewis, John H. 1878-
1
Louisiana,
1
Maine,
1
Maryland Geological Survey,
1
Michigan. Geological and Biological Survey,
1
Minnesota,
1
Mississippi. Tallahatchie Drainage Commission,
1
Missouri,
1
North Carolina,
1
Ohio,
1
Oklahoma,
1
Oregon. State Engineer,
1
Pennsylvania. Topographic and Geological Survey Commission,
1
Tennessee. State Geological Survey,
1
Texas,
1
University of Nebraska (Lincoln campus). Board of Regents,
1
Virginia Geological Survey,
1