"Why is an Earthquake" Washington, D.C., Dec. 17. The old question "why is an earthquake," and many other geological mysteries important to man, are being probed by scientific gadgets such as the ...
U.S. Geological Survey Center of Astrogeology, Photolab, 2255 North Gemini Drive, Flagstaff, Coconino County, AZ
A sketch of the geology of Leicestershire & Rutland /
[Geological field party for Tropical Oil Co. on the Llanos of Colombia: "dense jungle makes stream beds the only locales for locating and mapping geological outcrops"]
The history and description of the Great Western Railway : including its geology, and the antiquities of the district through which it passes, accompanied by a plan and section of the railway, ...
Washington, D.C. Left to right: Mrs. Marvel Barnekov, engineering aid, Joel Langjofer, chief engineering aid, employees of the U.S. Geological survey, Alaska branch, and Dr. William Wrather, director of the Geological Survey, ...
America's petroleum industries pour out fuel and lubricants for the United Nations. A geology expert of one of the large oil companies U.S. displays two varieties of sand from an oil drilling ...
Geological Survey. Washington, D.C., Mar. 13. Lithographic draftsmen correcting the printing plates at the Dept. of Interior Geological Survey Section
[Untitled photo, possibly related to: Washington, D.C. Left to right: Mrs. Marvel Barnekov, engineering aid, Joel Langjofer, chief engineering aid, employees of the U.S. Geological survey, Alaska branch, and Dr. William Wrather, ...
[Untitled photo, possibly related to: Washington, D.C. Left to right: Mrs. Marvel Barnekov, engineering aid, Joel Langjofer, chief engineering aid, employees of the U.S. Geological survey, Alaska branch, and Dr. William Wrather, ...
1. Title Sheet; Kay Moor No. 1 Mine, Geological Section; Council Ridge Colliery, Geological Section - Council Ridge Colliery, Eckley, Luzerne County, PA
Photographs showing landscapes, geological and other features, of portions of the western territory of the United States, obtained in connection with geographical and geological explorations and surveys west of the 100th meridian, ...
Photographic documentation of the "U.S. Topographical and Geological Survey of the Colorado River of the West by J.W. Powell and A.H. Thompson" sponsored by the U.S. Geological Survey
Mrs. Martha Carr, geologist of the U.S. Geological Survey, Washington, D.C. ...
U. S. Geological Survey Center of Astrogeology, Building No. 1, Flagstaff Field Center, 2255 North Gemini Drive, Flagstaff, Coconino County, AZ
[Mrs. Martha Carr, geologist with the U.S. Geological Survey]
[Views of Yellowstone National Park taken for F.V. Hayden's U.S. Geological Survey of the Territories]
The John Wesley Powell Building and U.S. Geological Survey National Center is located in Reston, Virginia, on a 106.1-acre campus situated just to the south of the intersection of the Fairfax County ...
The John Wesley Powell Building and U.S. Geological Survey National Center is located in Reston, Virginia, on a 106.1-acre campus situated just to the south of the intersection of the Fairfax County ...
The John Wesley Powell Building and U.S. Geological Survey National Center is located in Reston, Virginia, on a 106.1-acre campus situated just to the south of the intersection of the Fairfax County ...
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