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Geological Survey engraving room

Geological Survey engraving room

Public domain photograph of building interior, office, room, free to use, no copyright restrictions image - Picryl description

MUNROE, CHARLES EDWARD, PHD. CONSULTING EXPERT, U.S. GEOLOGICAL SURVEY AND BUREAU OF MINES

MUNROE, CHARLES EDWARD, PHD. CONSULTING EXPERT, U.S. GEOLOGICAL SURVEY...

Public domain photograph of official photograph, building on the background, free to use, no copyright restrictions image - Picryl description

U.S. Geological Survey Building Number 2, 2255 North Gemini Drive, Flagstaff, Coconino County, AZ

U.S. Geological Survey Building Number 2, 2255 North Gemini Drive, Fla...

Survey number: HABS AZ-224 Public domain photograph of architecture design, diagram, drawing, building plan, free to use, no copyright restrictions image - Picryl description

Geological atlas of Chosen - Public domain map

Geological atlas of Chosen - Public domain map

Public domain photograph of Korean geological atlas, geology, Korea, free to use, no copyright restrictions image - Picryl description

U.S. Geological Survey, Rock Magnetics Laboratory, 345 Middlefield Road, Menlo Park, San Mateo County, CA

U.S. Geological Survey, Rock Magnetics Laboratory, 345 Middlefield Roa...

Significance: The temporary building, which was originally a temporary military hospital, became, in 1959, the home of the Rock Magnetics Laboratory and the site of revolutionary research in the field of earth ... More

U.S. Geological Survey, Rock Magnetics Laboratory, 345 Middlefield Road, Menlo Park, San Mateo County, CA

U.S. Geological Survey, Rock Magnetics Laboratory, 345 Middlefield Roa...

Significance: The temporary building, which was originally a temporary military hospital, became, in 1959, the home of the Rock Magnetics Laboratory and the site of revolutionary research in the field of earth ... More

Geological atlas of Chosen - Public domain map

Geological atlas of Chosen - Public domain map

Public domain photograph of Korean geological atlas, geology, Korea, free to use, no copyright restrictions image - Picryl description

Geological atlas of Chosen - Public domain map

Geological atlas of Chosen - Public domain map

Public domain photograph of Korean geological atlas, geology, Korea, free to use, no copyright restrictions image - Picryl description

U.S. Geological Survey, Rock Magnetics Laboratory, 345 Middlefield Road, Menlo Park, San Mateo County, CA

U.S. Geological Survey, Rock Magnetics Laboratory, 345 Middlefield Roa...

Significance: The temporary building, which was originally a temporary military hospital, became, in 1959, the home of the Rock Magnetics Laboratory and the site of revolutionary research in the field of earth ... More

U.S. Geological Survey, Rock Magnetics Laboratory, 345 Middlefield Road, Menlo Park, San Mateo County, CA

U.S. Geological Survey, Rock Magnetics Laboratory, 345 Middlefield Roa...

Significance: The temporary building, which was originally a temporary military hospital, became, in 1959, the home of the Rock Magnetics Laboratory and the site of revolutionary research in the field of earth ... More

U.S. Geological Survey, Rock Magnetics Laboratory, 345 Middlefield Road, Menlo Park, San Mateo County, CA

U.S. Geological Survey, Rock Magnetics Laboratory, 345 Middlefield Roa...

Significance: The temporary building, which was originally a temporary military hospital, became, in 1959, the home of the Rock Magnetics Laboratory and the site of revolutionary research in the field of earth ... More

Geological and geographical atlas of Colorado and portions of adjacent territory,

Geological and geographical atlas of Colorado and portions of adjacent...

Public domain image of a vintage map, geography atlas, maritime navigation, age of discovery, 16th-17th century, free to use, no copyright restrictions - Picryl description

U.S. Geological Survey, Rock Magnetics Laboratory, 345 Middlefield Road, Menlo Park, San Mateo County, CA

U.S. Geological Survey, Rock Magnetics Laboratory, 345 Middlefield Roa...

Significance: The temporary building, which was originally a temporary military hospital, became, in 1959, the home of the Rock Magnetics Laboratory and the site of revolutionary research in the field of earth ... More

U.S. Geological Survey, Rock Magnetics Laboratory, 345 Middlefield Road, Menlo Park, San Mateo County, CA

U.S. Geological Survey, Rock Magnetics Laboratory, 345 Middlefield Roa...

Significance: The temporary building, which was originally a temporary military hospital, became, in 1959, the home of the Rock Magnetics Laboratory and the site of revolutionary research in the field of earth ... More

[U.S. Geological Survey pack train on trail along the Yellowstone River]

[U.S. Geological Survey pack train on trail along the Yellowstone Rive...

Picryl description: Public domain image of a rural landscape, horses, horse riding, farm animals, farmers, livestock, free to use, no copyright restrictions image.

Geological survey, F St. (Now Pren Club)

Geological survey, F St. (Now Pren Club)

Public domain photograph of wide street, city downtown, free to use, no copyright restrictions image - Picryl description

Washington, D.C. Employees of the U.S. Geological Survey, Alaska branch, adjusting the templates on the base map manuscript in the completion of an air navigation chart from aerial photographs. Left to right: William MacDonald, engineering aid, (now in the Marine Corps), Joel Langhofer, chief engineering aid, and Mrs. Marvel Barnekov, engineering aid

Washington, D.C. Employees of the U.S. Geological Survey, Alaska branc...

Public domain photograph of Washington DC, 1930s, free to use, no copyright restrictions image - Picryl description

Geological atlas of Chosen - Public domain map

Geological atlas of Chosen - Public domain map

Public domain photograph of Korean geological atlas, geology, Korea, free to use, no copyright restrictions image - Picryl description

U.S. Geological Survey, Rock Magnetics Laboratory, 345 Middlefield Road, Menlo Park, San Mateo County, CA

U.S. Geological Survey, Rock Magnetics Laboratory, 345 Middlefield Roa...

Significance: The temporary building, which was originally a temporary military hospital, became, in 1959, the home of the Rock Magnetics Laboratory and the site of revolutionary research in the field of earth ... More

U.S. Geological Survey, Rock Magnetics Laboratory, 345 Middlefield Road, Menlo Park, San Mateo County, CA

U.S. Geological Survey, Rock Magnetics Laboratory, 345 Middlefield Roa...

Significance: The temporary building, which was originally a temporary military hospital, became, in 1959, the home of the Rock Magnetics Laboratory and the site of revolutionary research in the field of earth ... More

U.S. Geological Survey, Rock Magnetics Laboratory, 345 Middlefield Road, Menlo Park, San Mateo County, CA

U.S. Geological Survey, Rock Magnetics Laboratory, 345 Middlefield Roa...

Significance: The temporary building, which was originally a temporary military hospital, became, in 1959, the home of the Rock Magnetics Laboratory and the site of revolutionary research in the field of earth ... More

This boat with a special receiving was left by scientists of the U.S. Geological Survey in a trip through the Grand Canyon of Colo. in 1923. This set with the oars as an aerial picked up news of the death of Pres. Harding three-quarters of an hour after his death. This was quite some feat considering the set was 3,000 ft. below sea level and 100 degrees in the shade

This boat with a special receiving was left by scientists of the U.S. ...

Picryl description: Public domain image of a portrait of a scientist, free to use, no copyright restrictions.

U.S. Geological Survey, Rock Magnetics Laboratory, 345 Middlefield Road, Menlo Park, San Mateo County, CA

U.S. Geological Survey, Rock Magnetics Laboratory, 345 Middlefield Roa...

Significance: The temporary building, which was originally a temporary military hospital, became, in 1959, the home of the Rock Magnetics Laboratory and the site of revolutionary research in the field of earth ... More

U.S. Geological Survey, Rock Magnetics Laboratory, 345 Middlefield Road, Menlo Park, San Mateo County, CA

U.S. Geological Survey, Rock Magnetics Laboratory, 345 Middlefield Roa...

Significance: The temporary building, which was originally a temporary military hospital, became, in 1959, the home of the Rock Magnetics Laboratory and the site of revolutionary research in the field of earth ... More

[Three men standing in front of log cabin at camp for U.S. Geological Survey team, Rocky Mountains] / W.H. Jackson photo.

[Three men standing in front of log cabin at camp for U.S. Geological ...

Public domain photograph of historic place, landmark, 19th-century vintage travel, free to use, no copyright restrictions image - Picryl description

Geological Survey, Interior Dept. Washington, D.C., Mar. 13. Horace Johnson engraving one of the copper plates that is used for a topographical map

Geological Survey, Interior Dept. Washington, D.C., Mar. 13. Horace Jo...

Public domain historical photo, free to use, no copyright restrictions image - Picryl description

Geological Survey. Washington, D.C., March 13. Albert Pike using a stereoscope on a pair of photographs to bring out the relief and locate objects for a map

Geological Survey. Washington, D.C., March 13. Albert Pike using a ste...

Public domain photograph of cabinet, bureau, office, 1920s - 1930s America, free to use, no copyright restrictions image - Picryl description

Dangerous spot. Washington, D.C., Dec. 18. Dr. L.H. Adams, Director of the Geological Laboratory of the Carnegie Institution, is standing in what might be a dangerous position should the little steel drum in the cabinet [next to] him explode. In this apparatus the scientists study the behavior and properties of artificial rock under tremendous pressure, a pressure greater than that generated in the breech of the cannon. From these studies is learned something of the behavior of rocks at great depths, 12/18/37

Dangerous spot. Washington, D.C., Dec. 18. Dr. L.H. Adams, Director of...

Public domain photograph of laboratory, science, research, free to use, no copyright restrictions image - Picryl description

Washington, D.C. Workers of the U.S. Geological Survey, Alaska branch, making the final drafting of an air navigation chart for the U.S. Army air forces

Washington, D.C. Workers of the U.S. Geological Survey, Alaska branch,...

Public domain photograph of the 1930s-1940s World War Two, armed forces, military production, no copyright restrictions image - Picryl description

Geological atlas of Chosen - Public domain map

Geological atlas of Chosen - Public domain map

Public domain photograph of Korean geological atlas, geology, Korea, free to use, no copyright restrictions image - Picryl description

U.S. Geological Survey, Rock Magnetics Laboratory, 345 Middlefield Road, Menlo Park, San Mateo County, CA

U.S. Geological Survey, Rock Magnetics Laboratory, 345 Middlefield Roa...

Significance: The temporary building, which was originally a temporary military hospital, became, in 1959, the home of the Rock Magnetics Laboratory and the site of revolutionary research in the field of earth ... More

Geological atlas of Chosen - Public domain map

Geological atlas of Chosen - Public domain map

Public domain photograph of Korean geological atlas, geology, Korea, free to use, no copyright restrictions image - Picryl description

Geological atlas of Chosen - Public domain dedication image

Geological atlas of Chosen - Public domain dedication image

Public domain photograph of Korean geological atlas, geology, Korea, free to use, no copyright restrictions image - Picryl description

U.S. Geological Survey, Rock Magnetics Laboratory, 345 Middlefield Road, Menlo Park, San Mateo County, CA

U.S. Geological Survey, Rock Magnetics Laboratory, 345 Middlefield Roa...

Significance: The temporary building, which was originally a temporary military hospital, became, in 1959, the home of the Rock Magnetics Laboratory and the site of revolutionary research in the field of earth ... More

Washington, D.C. John Zydik, an employee of the U.S. Geological Survey, Alaska branch, using the double-photo-alidade to make a topographic map

Washington, D.C. John Zydik, an employee of the U.S. Geological Survey...

Public domain photograph of laboratory, scientist, free to use, no copyright restrictions image - Picryl description

Geological map of the state of Pennsylvania : constructed from original surveys made between 1836 and 1857 /

Geological map of the state of Pennsylvania : constructed from origina...

Relief shown by hachures. "To accompany the final report on the Geological Survey of the state 1858." "Entered according to act of Congress, in the year 1858, by Henry D. Rogers ... Eastern District of Pennsylv... More

Geological and geographical atlas of Colorado and portions of adjacent territory,

Geological and geographical atlas of Colorado and portions of adjacent...

Public domain scan of an old vintage map, free to use, no copyright restrictions - Picryl description.

Geological atlas of Chosen - Public domain map

Geological atlas of Chosen - Public domain map

Public domain photograph of Korean geological atlas, geology, Korea, free to use, no copyright restrictions image - Picryl description

U.S. Geological Survey, Rock Magnetics Laboratory, 345 Middlefield Road, Menlo Park, San Mateo County, CA

U.S. Geological Survey, Rock Magnetics Laboratory, 345 Middlefield Roa...

Significance: The temporary building, which was originally a temporary military hospital, became, in 1959, the home of the Rock Magnetics Laboratory and the site of revolutionary research in the field of earth ... More

U.S. Geological Survey, Rock Magnetics Laboratory, 345 Middlefield Road, Menlo Park, San Mateo County, CA

U.S. Geological Survey, Rock Magnetics Laboratory, 345 Middlefield Roa...

Significance: The temporary building, which was originally a temporary military hospital, became, in 1959, the home of the Rock Magnetics Laboratory and the site of revolutionary research in the field of earth ... More

Members of the United States Geological Survey measuring a baseline near Fort Wingate, N.M., 1883

Members of the United States Geological Survey measuring a baseline ne...

Photograph showing men with surveying instruments in an arid landscape. ; handwritten on front of mount.

Washington, D.C. Miss Alice Blackwell, an employee of the U.S. Geological Survey, Alaska branch, is checking control point of the base manuscript

Washington, D.C. Miss Alice Blackwell, an employee of the U.S. Geologi...

Picryl description: Public domain photograph of the 1930s - 1940s, woman, female portrait, United States, free to use, no copyright restrictions.

Geological and geographical atlas of Colorado and portions of adjacent territory,

Geological and geographical atlas of Colorado and portions of adjacent...

Public domain scan of a page from geographical atlas, geography, free to use, no copyright restrictions image - Picryl description

Geological atlas of Chosen - Public domain map

Geological atlas of Chosen - Public domain map

Public domain photograph of Korean geological atlas, geology, Korea, free to use, no copyright restrictions image - Picryl description

Geological atlas of Chosen - Public domain map

Geological atlas of Chosen - Public domain map

Public domain photograph of Korean geological atlas, geology, Korea, free to use, no copyright restrictions image - Picryl description

U.S. Geological Survey, Rock Magnetics Laboratory, 345 Middlefield Road, Menlo Park, San Mateo County, CA

U.S. Geological Survey, Rock Magnetics Laboratory, 345 Middlefield Roa...

Significance: The temporary building, which was originally a temporary military hospital, became, in 1959, the home of the Rock Magnetics Laboratory and the site of revolutionary research in the field of earth ... More

U.S. Geological Survey, Rock Magnetics Laboratory, 345 Middlefield Road, Menlo Park, San Mateo County, CA

U.S. Geological Survey, Rock Magnetics Laboratory, 345 Middlefield Roa...

Significance: The temporary building, which was originally a temporary military hospital, became, in 1959, the home of the Rock Magnetics Laboratory and the site of revolutionary research in the field of earth ... More

U.S. Geological Survey, Rock Magnetics Laboratory, 345 Middlefield Road, Menlo Park, San Mateo County, CA

U.S. Geological Survey, Rock Magnetics Laboratory, 345 Middlefield Roa...

Significance: The temporary building, which was originally a temporary military hospital, became, in 1959, the home of the Rock Magnetics Laboratory and the site of revolutionary research in the field of earth ... More

Geological Survey. Washington, D.C., Mar. 13. Lithographic draftsmen correcting the printing plates at the Dept. of Interior Geological Survey Section

Geological Survey. Washington, D.C., Mar. 13. Lithographic draftsmen c...

Public domain historical photo, free to use, no copyright restrictions image - Picryl description

Washington, D.C. Miss Alice Blackwell, an employee of the U.S. Geological Survey, Alaska branch, is inserting an oblique aerial photograph into the oblique sketch master for the purpose of transferring the planimetry from the photograph to the base map of the manuscript

Washington, D.C. Miss Alice Blackwell, an employee of the U.S. Geologi...

Public domain scan of a plan, map, architecture drawing, or diagram, free to use, no copyright restrictions - Picryl description.

Geological and geographical atlas of Colorado and portions of adjacent territory,

Geological and geographical atlas of Colorado and portions of adjacent...

Public domain scan of a page from geographical atlas, geography, free to use, no copyright restrictions image - Picryl description

T. Dwight Porter to Thomas Jefferson, March 10, 1820, Note on Printed American Geological Society Act and Constitution, Dated May 31, 1819
U.S. Geological Survey, Rock Magnetics Laboratory, 345 Middlefield Road, Menlo Park, San Mateo County, CA

U.S. Geological Survey, Rock Magnetics Laboratory, 345 Middlefield Roa...

Significance: The temporary building, which was originally a temporary military hospital, became, in 1959, the home of the Rock Magnetics Laboratory and the site of revolutionary research in the field of earth ... More

U.S. Geological Survey, Rock Magnetics Laboratory, 345 Middlefield Road, Menlo Park, San Mateo County, CA

U.S. Geological Survey, Rock Magnetics Laboratory, 345 Middlefield Roa...

Significance: The temporary building, which was originally a temporary military hospital, became, in 1959, the home of the Rock Magnetics Laboratory and the site of revolutionary research in the field of earth ... More

U.S. Geological Survey, Rock Magnetics Laboratory, 345 Middlefield Road, Menlo Park, San Mateo County, CA

U.S. Geological Survey, Rock Magnetics Laboratory, 345 Middlefield Roa...

Significance: The temporary building, which was originally a temporary military hospital, became, in 1959, the home of the Rock Magnetics Laboratory and the site of revolutionary research in the field of earth ... More

U.S. Geological Survey, Rock Magnetics Laboratory, 345 Middlefield Road, Menlo Park, San Mateo County, CA

U.S. Geological Survey, Rock Magnetics Laboratory, 345 Middlefield Roa...

Significance: The temporary building, which was originally a temporary military hospital, became, in 1959, the home of the Rock Magnetics Laboratory and the site of revolutionary research in the field of earth ... More

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, adjusting templates to a base map manuscript

Washington, D.C. Left to right: Mrs. Marvel Barnekov, engineering aid,...

Public domain photograph of Washington DC, 1930s, free to use, no copyright restrictions image - Picryl description

U.S. Geological Survey, Rock Magnetics Laboratory, 345 Middlefield Road, Menlo Park, San Mateo County, CA

U.S. Geological Survey, Rock Magnetics Laboratory, 345 Middlefield Roa...

Significance: The temporary building, which was originally a temporary military hospital, became, in 1959, the home of the Rock Magnetics Laboratory and the site of revolutionary research in the field of earth ... More

U.S. Geological Survey, Rock Magnetics Laboratory, 345 Middlefield Road, Menlo Park, San Mateo County, CA

U.S. Geological Survey, Rock Magnetics Laboratory, 345 Middlefield Roa...

Significance: The temporary building, which was originally a temporary military hospital, became, in 1959, the home of the Rock Magnetics Laboratory and the site of revolutionary research in the field of earth ... More

U.S. Geological Survey, Rock Magnetics Laboratory, 345 Middlefield Road, Menlo Park, San Mateo County, CA

U.S. Geological Survey, Rock Magnetics Laboratory, 345 Middlefield Roa...

Significance: The temporary building, which was originally a temporary military hospital, became, in 1959, the home of the Rock Magnetics Laboratory and the site of revolutionary research in the field of earth ... More

C.E. Van Orstrand, Physical Geologist, U.S. Geological Survey

C.E. Van Orstrand, Physical Geologist, U.S. Geological Survey

A black and white photo of a man in a suit. Public domain portrait photograph, free to use, no copyright restrictions image - Picryl description

I.B. Millner of Morganton, N.C., 89 yrs of age for 14 years a member of the National Geological Survey and a member of the delegation of 300 who called on the President today

I.B. Millner of Morganton, N.C., 89 yrs of age for 14 years a member o...

I.B. Miller, full-length portrait, standing near White House, facing front. In album: Washington, D.C., June 1927 to May 1929, v. 2, Herbert E. French, National Photo Company, p. 26, no. 42385. Forms part of: N... More

Washington, D.C. Miss Barbara Austin, Mrs. Mary Keddy, and Miss Martha Hallman, three employees of the U.S. Geological Survey, Alaska branch, making a final checking of the base manuscript, in connection with air navigation charts

Washington, D.C. Miss Barbara Austin, Mrs. Mary Keddy, and Miss Martha...

Picryl description: Public domain photograph of the 1930s - 1940s, woman, female portrait, United States, free to use, no copyright restrictions.

Geological atlas of Chosen - Public domain map

Geological atlas of Chosen - Public domain map

Public domain photograph of Korean geological atlas, geology, Korea, free to use, no copyright restrictions image - Picryl description

Geological atlas of Chosen - Public domain map

Geological atlas of Chosen - Public domain map

Public domain photograph of Korean geological atlas, geology, Korea, free to use, no copyright restrictions image - Picryl description

Geological atlas of Chosen - Public domain map

Geological atlas of Chosen - Public domain map

Public domain photograph of Korean geological atlas, geology, Korea, free to use, no copyright restrictions image - Picryl description

Geological atlas of Chosen - Public domain map

Geological atlas of Chosen - Public domain map

Public domain photograph of Korean geological atlas, geology, Korea, free to use, no copyright restrictions image - Picryl description

Geological atlas of Chosen

Geological atlas of Chosen

Public domain photograph of Korean geological atlas, geology, Korea, free to use, no copyright restrictions image - Picryl description

U.S. Geological Survey, Rock Magnetics Laboratory, 345 Middlefield Road, Menlo Park, San Mateo County, CA

U.S. Geological Survey, Rock Magnetics Laboratory, 345 Middlefield Roa...

Significance: The temporary building, which was originally a temporary military hospital, became, in 1959, the home of the Rock Magnetics Laboratory and the site of revolutionary research in the field of earth ... More

U.S. Geological Survey, Rock Magnetics Laboratory, 345 Middlefield Road, Menlo Park, San Mateo County, CA

U.S. Geological Survey, Rock Magnetics Laboratory, 345 Middlefield Roa...

Significance: The temporary building, which was originally a temporary military hospital, became, in 1959, the home of the Rock Magnetics Laboratory and the site of revolutionary research in the field of earth ... More

U.S. Geological Survey, Rock Magnetics Laboratory, 345 Middlefield Road, Menlo Park, San Mateo County, CA

U.S. Geological Survey, Rock Magnetics Laboratory, 345 Middlefield Roa...

Significance: The temporary building, which was originally a temporary military hospital, became, in 1959, the home of the Rock Magnetics Laboratory and the site of revolutionary research in the field of earth ... More

U.S. Geological Survey, Rock Magnetics Laboratory, 345 Middlefield Road, Menlo Park, San Mateo County, CA

U.S. Geological Survey, Rock Magnetics Laboratory, 345 Middlefield Roa...

Significance: The temporary building, which was originally a temporary military hospital, became, in 1959, the home of the Rock Magnetics Laboratory and the site of revolutionary research in the field of earth ... More

U.S. Geological Survey, Rock Magnetics Laboratory, 345 Middlefield Road, Menlo Park, San Mateo County, CA

U.S. Geological Survey, Rock Magnetics Laboratory, 345 Middlefield Roa...

Significance: The temporary building, which was originally a temporary military hospital, became, in 1959, the home of the Rock Magnetics Laboratory and the site of revolutionary research in the field of earth ... More

U.S. Geological Survey, Rock Magnetics Laboratory, 345 Middlefield Road, Menlo Park, San Mateo County, CA

U.S. Geological Survey, Rock Magnetics Laboratory, 345 Middlefield Roa...

Significance: The temporary building, which was originally a temporary military hospital, became, in 1959, the home of the Rock Magnetics Laboratory and the site of revolutionary research in the field of earth ... More

U.S. Geological Survey, Rock Magnetics Laboratory, 345 Middlefield Road, Menlo Park, San Mateo County, CA

U.S. Geological Survey, Rock Magnetics Laboratory, 345 Middlefield Roa...

Significance: The temporary building, which was originally a temporary military hospital, became, in 1959, the home of the Rock Magnetics Laboratory and the site of revolutionary research in the field of earth ... More

Geological map of petroleum belts of Panuco and Tuxpam.

Geological map of petroleum belts of Panuco and Tuxpam.

Available also through the Library of Congress Web site as a raster image.

Map of Choctaw Nation, Indian territory : compiled from official records of the United States Geological Survey /

Map of Choctaw Nation, Indian territory : compiled from official recor...

At head of sheet: Exhibit "A". Includes approved coal leases and coal claims. From: United States. Dept. of the Interior. Secretary's annual statement and report to the President and the Congress, 1902. Availa... More

"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 two pictured here at the Geological Laboratory of the Carnegie Institute. The scientists work and apparatus will be studied by geologists from all points of the country when the Geological Society of America meets in Washington December 28-30. Dr. J.F. Schairer, physical chemist of the laboratory is shown at the instrument panel of one of t he cylindrical electrical furnaces which generate heat up to 2100 degrees Fahrenheit, melting artificial rock in the study of crystallization or cooling of rocks from volcanoes. 12/17/37

"Why is an Earthquake" Washington, D.C., Dec. 17. The old question "wh...

Public domain photograph of laboratory, scientist, free to use, no copyright restrictions image - Picryl description

Geological and geographical atlas of Colorado and portions of adjacent territory,

Geological and geographical atlas of Colorado and portions of adjacent...

Public domain image of a vintage map, geography atlas, maritime navigation, age of discovery, 16th-17th century, free to use, no copyright restrictions - Picryl description

Geological atlas of Chosen - Public domain map

Geological atlas of Chosen - Public domain map

Public domain photograph of Korean geological atlas, geology, Korea, free to use, no copyright restrictions image - Picryl description

Geological atlas of Chosen - Public domain map

Geological atlas of Chosen - Public domain map

Public domain photograph of Korean geological atlas, geology, Korea, free to use, no copyright restrictions image - Picryl description

Geological atlas of Chosen - Public domain map

Geological atlas of Chosen - Public domain map

Public domain photograph of Korean geological atlas, geology, Korea, free to use, no copyright restrictions image - Picryl description

Geological atlas of Chosen - Public domain map

Geological atlas of Chosen - Public domain map

Public domain photograph of Korean geological atlas, geology, Korea, free to use, no copyright restrictions image - Picryl description

Geological atlas of Chosen - Public domain map

Geological atlas of Chosen - Public domain map

Public domain photograph of Korean geological atlas, geology, Korea, free to use, no copyright restrictions image - Picryl description

Geological atlas of Chosen - Public domain map

Geological atlas of Chosen - Public domain map

Public domain photograph of Korean geological atlas, geology, Korea, free to use, no copyright restrictions image - Picryl description

Geological atlas of Chosen - Public domain map

Geological atlas of Chosen - Public domain map

Public domain photograph of Korean geological atlas, geology, Korea, free to use, no copyright restrictions image - Picryl description

Geological atlas of Chosen - Public domain map

Geological atlas of Chosen - Public domain map

Public domain photograph of Korean geological atlas, geology, Korea, free to use, no copyright restrictions image - Picryl description

Geological atlas of Chosen - Public domain map

Geological atlas of Chosen - Public domain map

Public domain photograph of Korean geological atlas, geology, Korea, free to use, no copyright restrictions image - Picryl description

Geological atlas of Chosen - Public domain map

Geological atlas of Chosen - Public domain map

Public domain photograph of Korean geological atlas, geology, Korea, free to use, no copyright restrictions image - Picryl description

Geological atlas of Chosen - Public domain map

Geological atlas of Chosen - Public domain map

Public domain photograph of Korean geological atlas, geology, Korea, free to use, no copyright restrictions image - Picryl description

Geological atlas of Chosen - Public domain map

Geological atlas of Chosen - Public domain map

Public domain photograph of Korean geological atlas, geology, Korea, free to use, no copyright restrictions image - Picryl description

Geological atlas of Chosen - Public domain map

Geological atlas of Chosen - Public domain map

Public domain photograph of Korean geological atlas, geology, Korea, free to use, no copyright restrictions image - Picryl description

Geological atlas of Chosen - Public domain map

Geological atlas of Chosen - Public domain map

Public domain photograph of Korean geological atlas, geology, Korea, free to use, no copyright restrictions image - Picryl description

Geological atlas of Chosen - Public domain map

Geological atlas of Chosen - Public domain map

Public domain photograph of Korean geological atlas, geology, Korea, free to use, no copyright restrictions image - Picryl description

Geological atlas of Chosen - Public domain map

Geological atlas of Chosen - Public domain map

Public domain photograph of Korean geological atlas, geology, Korea, free to use, no copyright restrictions image - Picryl description

Geological atlas of Chosen - Public domain map

Geological atlas of Chosen - Public domain map

Public domain photograph of Korean geological atlas, geology, Korea, free to use, no copyright restrictions image - Picryl description

Geological atlas of Chosen - Public domain map

Geological atlas of Chosen - Public domain map

Public domain photograph of Korean geological atlas, geology, Korea, free to use, no copyright restrictions image - Picryl description

Geological atlas of Chosen - Public domain map

Geological atlas of Chosen - Public domain map

Public domain photograph of Korean geological atlas, geology, Korea, free to use, no copyright restrictions image - Picryl description

Geological atlas of Chosen - Public domain map

Geological atlas of Chosen - Public domain map

Public domain photograph of Korean geological atlas, geology, Korea, free to use, no copyright restrictions image - Picryl description

Geological atlas of Chosen - Public domain map

Geological atlas of Chosen - Public domain map

Public domain photograph of Korean geological atlas, geology, Korea, free to use, no copyright restrictions image - Picryl description

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