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The Devil's backbone, Vicksburg. Photochrom print, 1880-1890.

The Devil's backbone, Vicksburg. Photochrom print, 1880-1890.

Historic Sites Public domain photograph - photochrome print, colorized, free to use, no copyright restrictions image - Picryl description

Devil's Backbone and Will's Creek, mammoth plate negative

Devil's Backbone and Will's Creek, mammoth plate negative

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

Spanish-American farmers breaking backbone of slaughtered hog with axe. Chamisal, New Mexico

Spanish-American farmers breaking backbone of slaughtered hog with axe...

Public domain photograph - New Mexico, United States, free to use, no copyright restrictions image - Picryl description

Steel mill equipment. Tanks! Ships! Guns! They all take steel and more steel. These highly skilled machinists are doing their part to expand and maintain America's steel production capacity. Heavy castings that will form the backbone of steel mill equipment are being machined in one of Pennsylvania's heavy industry plants now converted to the production of vitally needed military equipment. Aetna. Elwood City, Pennsylvania

Steel mill equipment. Tanks! Ships! Guns! They all take steel and more...

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

Backbone of the American Army is the old sergeant. He knows men, army life, discipline, fighting -- everything needed for his job of turning raw recruits into finished soldiers

Backbone of the American Army is the old sergeant. He knows men, army ...

Picryl description: Public domain image of a worker, labor, factory, plant, manufacture, industrial facility, 1930s, mid-20th-century industrial photo, free to use, no copyright restrictions.

The Devil's backbone, Vicksburg. Photochrom print, 1880-1890.

The Devil's backbone, Vicksburg. Photochrom print, 1880-1890.

Historic Sites Public domain photograph - photochrome print, colorized, free to use, no copyright restrictions image - Picryl description

Devil's Backbone, Vicksburg, Miss.

Devil's Backbone, Vicksburg, Miss.

Picryl description: Public domain image of a quarry, excavation or mining site, free to use, no copyright restrictions.

Steel mill equipment. Tanks! Ships! Guns! They all take steel and more steel. These highly skilled machinists are doing their part to expand and maintain America's steel production capacity. Heavy castings that will form the backbone of steel mill equipment are being machined in one of Pennsylvania's heavy industry plants now converted to the production of vitally needed military equipment. Aetna. Ellwood City, Pennsylvania

Steel mill equipment. Tanks! Ships! Guns! They all take steel and more...

Picryl description: Public domain image of a factory, plant, manufacture, assembly line, industrial facility, early 20th-century industrial architecture, free to use, no copyright restrictions.

The Magic Spring and Fissured Ridge Series. Magic Spring and Devil's Backbone

The Magic Spring and Fissured Ridge Series. Magic Spring and Devil's B...

No. 106. Part of series: Yellowstone National Park, illustrated by 122 views.

[Adirondack Mountains, N.Y.]: Backbone of Bald Mountain

[Adirondack Mountains, N.Y.]: Backbone of Bald Mountain

Rock ridge, with man standing in backgrd. Photo copyrighted by S.R. Stoddard. This record contains unverified, old data from caption card. Caption card tracings: Geogr.

The backbone of the Sierras from Kearsarge Pass

The backbone of the Sierras from Kearsarge Pass

J158869 U.S. Copyright Office Copyright deposit; Pacific Photo Co.; August 15, 1911. On front: "Regis. Copy'r. by Pacific Photo Co., Los Angeles, July 27, 1911, #502."

Nebraska Farmers - "Devil's Backbone."

Nebraska Farmers - "Devil's Backbone."

summary: A canyon near the Middle Loup River in Custer County, Nebraska. original size: 6x8

Napa Valley, California. More than twenty-five years a bindle-stiff. Walks from the mines to the lumber camps to the farms. The type that formed the backbone of the Industrial Workers of the World in California before the war. Subject of Carleton Parker's studies on Industrial Workers of the World

Napa Valley, California. More than twenty-five years a bindle-stiff. W...

Picryl description: Public domain image of byciclyst, bike, bicycle wheel, sport event, free to use, no copyright restrictions.

Napa Valley, California. More than twenty-five years a bindle-stiff. Walks from the mines to the lumber camps to the farms. The type that formed the backbone of the Industrial Workers of the World (IWW) in California before the war

Napa Valley, California. More than twenty-five years a bindle-stiff. W...

Public domain photograph of Great Depression, farm, farmer, no copyright restrictions image - Picryl description

Napa Valley, California. More than twenty-five years a bindle-stiff. Walks from the mines to the lumber camps to the farms. The type that formed the backbone of the Industrial Workers of the World (IWW) in California before the war. Subject of Carleton Parker's "Studies on IWW"

Napa Valley, California. More than twenty-five years a bindle-stiff. W...

Public domain photograph of rural California, dust bowl refugees, 1930s-1940s, no copyright restrictions image - Picryl description

The Devil's backbone, Aiken, S.C.

The Devil's backbone, Aiken, S.C.

Public domain photograph - historical image of South Carolina, United States, free to use, no copyright restrictions image - Picryl description

Breaking that "backbone", Confederate States of America.

Breaking that "backbone", Confederate States of America.

A figurative commentary on Northern efforts to end the rebellion during the early years of the Civil War. Confederate President Jefferson Davis (far left) displays "the Great Southern Gyascutis," a dog-like mon... More

The backbone of darkness: An introduction to the natural sciences : notes

The backbone of darkness: An introduction to the natural sciences : no...

Notes for the idea of an unpublished textbook, "The backbone of darkness: An introduction to the natural sciences," which Carl Sagan was developing. Among other topics, it would have covered, the strategy of sc... More

The backbone of darkness: An introduction to the natural sciences : notes

The backbone of darkness: An introduction to the natural sciences : no...

Notes for the idea of an unpublished textbook, "The backbone of darkness: An introduction to the natural sciences," which Carl Sagan was developing. Among other topics, it would have covered, the strategy of sc... More

The Devil's backbone, Vicksburg. Photochrom print, 1880-1890.

The Devil's backbone, Vicksburg. Photochrom print, 1880-1890.

Historic Sites Public domain photograph - photochrome print, colorized, free to use, no copyright restrictions image - Picryl description

The backbone of darkness: An introduction to the natural sciences : notes

The backbone of darkness: An introduction to the natural sciences : no...

Notes for the idea of an unpublished textbook, "The backbone of darkness: An introduction to the natural sciences," which Carl Sagan was developing. Among other topics, it would have covered, the strategy of sc... More

The backbone of darkness: An introduction to the natural sciences : notes

The backbone of darkness: An introduction to the natural sciences : no...

Notes for the idea of an unpublished textbook, "The backbone of darkness: An introduction to the natural sciences," which Carl Sagan was developing. Among other topics, it would have covered, the strategy of sc... More

The Dependent Widower. (See Label 2071) Wanted: A BACKBONE.  Location: Meridian, Mississippi.

The Dependent Widower. (See Label 2071) Wanted: A BACKBONE. Location:...

Picryl description: Public domain vintage artistic photograph, free to use, no copyright restrictions image.

The backbone of darkness: An introduction to the natural sciences : notes

The backbone of darkness: An introduction to the natural sciences : no...

Notes for the idea of an unpublished textbook, "The backbone of darkness: An introduction to the natural sciences," which Carl Sagan was developing. Among other topics, it would have covered, the strategy of sc... More

The backbone of darkness: An introduction to the natural sciences : notes

The backbone of darkness: An introduction to the natural sciences : no...

Notes for the idea of an unpublished textbook, "The backbone of darkness: An introduction to the natural sciences," which Carl Sagan was developing. Among other topics, it would have covered, the strategy of sc... More

The Devil's backbone, Aiken, S.C.

The Devil's backbone, Aiken, S.C.

Picryl description: Public domain image of a quarry, excavation or mining site, free to use, no copyright restrictions.

The backbone of darkness: An introduction to the natural sciences : notes

The backbone of darkness: An introduction to the natural sciences : no...

Notes for the idea of an unpublished textbook, "The backbone of darkness: An introduction to the natural sciences," which Carl Sagan was developing. Among other topics, it would have covered, the strategy of sc... More

The backbone of darkness: An introduction to the natural sciences : notes

The backbone of darkness: An introduction to the natural sciences : no...

Notes for the idea of an unpublished textbook, "The backbone of darkness: An introduction to the natural sciences," which Carl Sagan was developing. Among other topics, it would have covered, the strategy of sc... More

The backbone of darkness: An introduction to the natural sciences : notes

The backbone of darkness: An introduction to the natural sciences : no...

Notes for the idea of an unpublished textbook, "The backbone of darkness: An introduction to the natural sciences," which Carl Sagan was developing. Among other topics, it would have covered, the strategy of sc... More

The backbone of darkness: An introduction to the natural sciences : notes

The backbone of darkness: An introduction to the natural sciences : no...

Notes for the idea of an unpublished textbook, "The backbone of darkness: An introduction to the natural sciences," which Carl Sagan was developing. Among other topics, it would have covered, the strategy of sc... More

The backbone of darkness: An introduction to the natural sciences : notes on envelope

The backbone of darkness: An introduction to the natural sciences : no...

Public domain image related to Carl Sagan, science, astronomy, physics, astrophysics, free to use, no copyright restrictions image - Picryl description

The backbone of darkness: An introduction to the natural sciences : notes

The backbone of darkness: An introduction to the natural sciences : no...

Notes for the idea of an unpublished textbook, "The backbone of darkness: An introduction to the natural sciences," which Carl Sagan was developing. Among other topics, it would have covered, the strategy of sc... More

The backbone of darkness: An introduction to the natural sciences : notes

The backbone of darkness: An introduction to the natural sciences : no...

Notes for the idea of an unpublished textbook, "The backbone of darkness: An introduction to the natural sciences," which Carl Sagan was developing. Among other topics, it would have covered, the strategy of sc... More

The backbone of darkness: An introduction to the natural sciences : notes

The backbone of darkness: An introduction to the natural sciences : no...

Notes for the idea of an unpublished textbook, "The backbone of darkness: An introduction to the natural sciences," which Carl Sagan was developing. Among other topics, it would have covered, the strategy of sc... More

The backbone of darkness: An introduction to the natural sciences : notes

The backbone of darkness: An introduction to the natural sciences : no...

Notes for the idea of an unpublished textbook, "The backbone of darkness: An introduction to the natural sciences," which Carl Sagan was developing. Among other topics, it would have covered, the strategy of sc... More

The backbone of darkness: An introduction to the natural sciences : notes

The backbone of darkness: An introduction to the natural sciences : no...

Notes for the idea of an unpublished textbook, "The backbone of darkness: An introduction to the natural sciences," which Carl Sagan was developing. Among other topics, it would have covered, the strategy of sc... More

The backbone of darkness: An introduction to the natural sciences : notes

The backbone of darkness: An introduction to the natural sciences : no...

Notes for the idea of an unpublished textbook, "The backbone of darkness: An introduction to the natural sciences," which Carl Sagan was developing. Among other topics, it would have covered, the strategy of sc... More

The backbone of darkness: An introduction to the natural sciences : notes on envelope

The backbone of darkness: An introduction to the natural sciences : no...

Public domain image related to Carl Sagan, science, astronomy, physics, astrophysics, free to use, no copyright restrictions image - Picryl description

The backbone of darkness: An introduction to the natural sciences : notes

The backbone of darkness: An introduction to the natural sciences : no...

Notes for the idea of an unpublished textbook, "The backbone of darkness: An introduction to the natural sciences," which Carl Sagan was developing. Among other topics, it would have covered, the strategy of sc... More

Napa Valley, California. More than twenty-five years a bindle-stiff. Walks from the mines to the lumber camps to the farms. The type that formed the backbone of the Industrial Workers of the World in California before the war

Napa Valley, California. More than twenty-five years a bindle-stiff. W...

Public domain photograph of rural California, dust bowl refugees, 1930s-1940s, no copyright restrictions image - Picryl description

Napa Valley, California. More than twenty-five years a bindle-stiff. Walks from the mines to the lumber camps to the farms. The type that formed the backbone of the Industrial Workers of the World (IWW) in California before the war. Subject of Carleton Parker's "Studies on IWW"

Napa Valley, California. More than twenty-five years a bindle-stiff. W...

Public domain photograph - 1930s California, United States, free to use, no copyright restrictions image - Picryl description

The backbone of darkness: An introduction to the natural sciences : notes

The backbone of darkness: An introduction to the natural sciences : no...

Notes for the idea of an unpublished textbook, "The backbone of darkness: An introduction to the natural sciences," which Carl Sagan was developing. Among other topics, it would have covered, the strategy of sc... More

The backbone of darkness: An introduction to the natural sciences : notes

The backbone of darkness: An introduction to the natural sciences : no...

Notes for the idea of an unpublished textbook, "The backbone of darkness: An introduction to the natural sciences," which Carl Sagan was developing. Among other topics, it would have covered, the strategy of sc... More

The backbone of darkness: An introduction to the natural sciences : notes

The backbone of darkness: An introduction to the natural sciences : no...

Notes for the idea of an unpublished textbook, "The backbone of darkness: An introduction to the natural sciences," which Carl Sagan was developing. Among other topics, it would have covered, the strategy of sc... More

The backbone of darkness: An introduction to the natural sciences : notes

The backbone of darkness: An introduction to the natural sciences : no...

Notes for the idea of an unpublished textbook, "The backbone of darkness: An introduction to the natural sciences," which Carl Sagan was developing. Among other topics, it would have covered, the strategy of sc... More

The Magic Spring and Fissured Ridge Series. Magic Spring and Devil's Backbone

The Magic Spring and Fissured Ridge Series. Magic Spring and Devil's B...

No. 106. Part of series: Yellowstone National Park, illustrated by 122 views.

The backbone of darkness: An introduction to the natural sciences : notes

The backbone of darkness: An introduction to the natural sciences : no...

Notes for the idea of an unpublished textbook, "The backbone of darkness: An introduction to the natural sciences," which Carl Sagan was developing. Among other topics, it would have covered, the strategy of sc... More

The backbone of darkness: An introduction to the natural sciences : notes

The backbone of darkness: An introduction to the natural sciences : no...

Notes for the idea of an unpublished textbook, "The backbone of darkness: An introduction to the natural sciences," which Carl Sagan was developing. Among other topics, it would have covered, the strategy of sc... More

The Devil's backbone, Aiken, S.C.

The Devil's backbone, Aiken, S.C.

Picryl description: Public domain image of a park alley, trees, free to use, no copyright restrictions.

Devil's Backbone, Vicksburg, Miss.

Devil's Backbone, Vicksburg, Miss.

Public domain photograph - historical image of Mississippi, United States, free to use, no copyright restrictions image - Picryl description

The backbone of the Sierras from Kearsarge Pass

The backbone of the Sierras from Kearsarge Pass

J158869 U.S. Copyright Office Copyright deposit; Pacific Photo Co.; August 15, 1911. On front: "Regis. Copy'r. by Pacific Photo Co., Los Angeles, July 27, 1911, #502."