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Chickamauga Dam and powerhouse. One of the headquarters buildings of farmers' cooperatives which distribute TVA (Tennessee Valley Authority) power. With comfortable lounges, meeting rooms, and up-to-snuff shops, garages and offices, such buildings become centers of interest in the small towns in which they are located (quoted from previously written caption). Headquarters building of the rural power distribution cooperative at Shelbyville, Tennessee (see general comments under K 2382). In the design of these structures a certain degree of uniformity is observed to express the fact that they are parts of a nationwide system. The symbol REA stands for Rural Electrification Administration which by engineering, financing, and general guidance promotes rural electrical cooperatives throughout the United States and its territories. Each design is individually developed, however, from the special requirements of the organization and with attention to location and site characteristics

Chickamauga Dam and powerhouse. One of the headquarters buildings of f...

Picryl description: Public domain image of a power dam, cascade, free to use, no copyright restrictions.

Blending. Many batches of synthetic rubber latex are batched and blended in concrete storage tanks at the Institute plant. This blending assures uniformity of the product. After blending the rubber content is separated by coagulation

Blending. Many batches of synthetic rubber latex are batched and blend...

Picryl description: Public domain image of an industrial building, factory, workshop, workers, 20th century, free to use, no copyright restrictions.

Detroit, Michigan. Assembly of Rolls Royce engines at the Packard Motor Car Company. Inspecting piston rings for flatness and uniformity of thickness

Detroit, Michigan. Assembly of Rolls Royce engines at the Packard Moto...

Public domain photograph - working class people, the 1930s United States, work, labor, worker, free to use, no copyright restrictions image - Picryl description

Synthetic rubber (Ameripol). This worker is standing on a "blowdown" tank, about ready to tap a polymerizer tank at the Akron, Ohio synthetic rubber plant of the B.F. Goodrich Company. The latex blended in the latter tank is stabilized in the "blow downs." A large blending tank increases the uniformity of these synthetic solutions by mixing the contents of seven or eight of these tanks. Goodrich

Synthetic rubber (Ameripol). This worker is standing on a "blowdown" t...

Public domain photograph of 1930s-1940s US industrial development, Second World War, US war production, indusry, no copyright restrictions image - Picryl description

Synthetic rubber (Ameripol). This worker is standing on a "blowdown" tank, about ready to tap a polymerizer tank at the Akron, Ohio synthetic rubber plant of the B.F. Goodrich Company. The latex blending tank increases the uniformity of these synthetic solutions by mixing the contents of seven or eight of these tanks. Goodrich

Synthetic rubber (Ameripol). This worker is standing on a "blowdown" t...

Picryl description: Public domain image of people, meeting, eating, drinking, food, beverage, 1930s, free to use, no copyright restrictions.

Easter bunnies' laurels threatened. Government experts enable hens to color own eggs. Washington, D.C., April 7. An interesting experiment is in progress at the National Agricultural Center, Beltsville, Maryland, whereby hens color their own eggs over a range of hues from a pearly white through brown to sky-blue. This picture of Charles A. Denton, Junior Chemist, at the nutrition laboratory, shows the method of measuring the yolk index. Eventually we may anticipate a uniformity of eggs in shape and in yolk color as well as a definite amount of proteins contained in each one. 4.7.39

Easter bunnies' laurels threatened. Government experts enable hens to ...

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