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Future may see hens lay eggs of different colors through experiments of government experts. Washington, D.C., April 7. Joseph's coat of many colors may now be duplicated in the poultry laboratory where hens paint their own eggs over a range of hues from pearly white, through the various shades of brown, to sky blue. These experiments are in progress at the National Agricultural Research Center, Beltsville, Maryland. In this picture is shown Charles A. Denton, Junior Chemist, measuring the width, circumference and height of the white of a colored egg to determine the amount of albumen present. 4-7-39

Future may see hens lay eggs of different colors through experiments o...

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

Steel manufacture, Allegheny-Ludlum. This slab of stainless steel is being rolled by a three-high 100 inch plate mill to bring it to the proper length, finish, thickness and width

Steel manufacture, Allegheny-Ludlum. This slab of stainless steel is b...

Picryl description: Public domain image of an industrial building, factory, workshop, workers, 19th-20th century, free to use, no copyright restrictions.

Madera canal, Central Valley Reclamation Project, Calif. A group of canal structures in the vicinity of station 330. In the foreground is a turnout and check with an extra width farm bridge and an overchute beyond

Madera canal, Central Valley Reclamation Project, Calif. A group of ca...

Public domain photograph of train station, free to use, no copyright restrictions image - Picryl description

Front side view of C-82 shown at demonstration of equipment held by United States Army Air Forces. The after end of the fuselage opens to the complete height and width of the interior, which is square. To allow freight to be stowed directly from a truck, bottom of fuselage is the height of a standard truck from the ground. This plane carries heavy military cargo, and is designed to land such loads safely on rough fields near battle points

Front side view of C-82 shown at demonstration of equipment held by Un...

Picryl description: Public domain image of a military aircraft, assembly line, industrial facility, 1930s aviation, free to use, no copyright restrictions.

Truck being loaded into the new C-82 at demonstration of equipment held by United States Army Air Forces. The after end of the fuselage opens to the complete height and width of the interior, which is square. This is first plane designed solely for hauling military cargo, and is the product of the combined engineering staffs of Air Technical Service Command and the Fairchild Aircraft Corporation

Truck being loaded into the new C-82 at demonstration of equipment hel...

Picryl description: Public domain image of a military aircraft, assembly line, industrial facility, 1930s aviation, free to use, no copyright restrictions.

Steel manufacture, Allegheny-Ludlum. A slab of stainless is about to enter a three-high 110 inch plate mill, just having been removed from a heating furnace. This mill will roll the slab to produce the finish, thickness, width and length required for its use as tank armor

Steel manufacture, Allegheny-Ludlum. A slab of stainless is about to e...

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

Camp Beauty, Cañon de Chelle; walls 1,200 feet high, width of Cañon at this point about one fourth of a mile.

Camp Beauty, Cañon de Chelle; walls 1,200 feet high, width of Cañon at...

Original negative number: 13. Caption number on back of stereo: No. 25. Part of series: U.S. War Dept., Corps of Engineers; Geographical Explorations and Surveys West of 100th Meridian, Expedition of 1871; Lie... More

View of the great railroad wreck The most appalling railroad disaster on the Continent, on the T.P. & W.R.R. near Chatsworth, Illinois, of the Niagara Excursion Train, at midnight, August 10th, 1887 ; From south, showing sleeper "Tunis," the height and width of the culvert 5 1/2 by 8 feet, the cause of the wreck, and seventeen pairs of trucks in one pile / / Harlan Holferty, view artist.

View of the great railroad wreck The most appalling railroad disaster ...

The albumen silver print is a photographic printing process that was widely used in the 19th century. It involves coating paper support with a mixture of egg whites and salt, which creates a glossy surface to h... More

Shenandoah Valley. This is the Shenandoah Valley. A fold between the Blue Ridge and the Appalachian, some seventy miles in length, varying from thirty to eight miles in width

Shenandoah Valley. This is the Shenandoah Valley. A fold between the B...

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

Camp Beauty, Cañon de Chelle; walls 1,200 feet high, width of Cañon at this point about one fourth of a mile.

Camp Beauty, Cañon de Chelle; walls 1,200 feet high, width of Cañon at...

Original negative number: 13. Caption number on back of stereo: No. 25. Part of series: U.S. War Dept., Corps of Engineers; Geographical Explorations and Surveys West of 100th Meridian, Expedition of 1871; Lie... More

Dead Sea Album, prepared for the Palestine Potash Ltd. The flood protection dam in Wady Figra which at rare times becomes roaring torrent the full width of the valley

Dead Sea Album, prepared for the Palestine Potash Ltd. The flood prote...

Picryl description: Public domain image of a dry desert landscape, sand, sky, free to use, no copyright restrictions.

Conversion. Copper and brass processing. Large rolls of sheet brass and copper ready for the slitting machine, where the roll edges will be trimmed off. These unfinished rolls will all be slit into even-edged, uniform width rolls. Chase Copper and Brass Company, Euclid, Ohio

Conversion. Copper and brass processing. Large rolls of sheet brass an...

Picryl description: Public domain image of workers, labor, 1940s, economic conditions, free to use, no copyright restrictions.

Dr. Eleanor Hunt. Dr. Hunt measuring width of boy's thigh

Dr. Eleanor Hunt. Dr. Hunt measuring width of boy's thigh

Public domain photograph of midcentury American portrait, 1940s-1950s, free to use, no copyright restrictions image - Picryl description

Steel manufacture, Allegheny-Ludlum. This slab of stainless steel is being rolled by a three-high 100 inch plate mill to bring it to the proper length, finish, thickness and width. It will eventually be used as tank armor

Steel manufacture, Allegheny-Ludlum. This slab of stainless steel is b...

Public domain photograph of 1930s-1940s industrial development, no copyright restrictions image - Picryl description

Rear view of C-82 shown at demonstration of equipment held by United States Army Air Forces. The after end of the fuselage opens to the complete height and width of the interior, which is square. In order to allow freight to be stowed directly from a truck, the bottom of the fuselage is the height of a standard truck from the ground

Rear view of C-82 shown at demonstration of equipment held by United S...

Picryl description: Public domain photograph of workers, war production, aircraft, airfield, the 1930s -1940s, free to use, no copyright restrictions.

View of the great railroad wreck The most appalling railroad disaster on the Continent, on the T.P. & W.R.R. near Chatsworth, Illinois, of the Niagara Excursion Train, at midnight, August 10th, 1887 ; From south, showing sleeper "Tunis," the height and width of the culvert 5 1/2 by 8 feet, the cause of the wreck, and seventeen pairs of trucks in one pile / / Harlan Holferty, view artist.

View of the great railroad wreck The most appalling railroad disaster ...

Picryl description: Public domain image of a locomotive, train tracks, rail transportation, railroad, railway, 19th-20th century, free to use, no copyright restrictions.

Government discovers method to preserve film. Scratch resistance, film, particulary the emulsion side, may become damaged through scratching. D. Levinsky of the Bureau is using an instrument which tests the resitance of a film by measuring the width of a scratch produced by a diamond point under a given load. Another method is to put a piece of film in a bottle of sand, revolve the bottle a certain number of times, then measure the haxiness developed. Many commercial treatments designed to increase the hardness of the emulsion have been investigated, 7/8/38

Government discovers method to preserve film. Scratch resistance, film...

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

Rear view showing how after end of fuselage opens to the complete height and width of the interior, which is square. This newest transport of the United States Army Air Forces is in the 50,000 pound class, and in its weight and bulk carrying capacity it will enable the air transport of ninety percent of the heavy equipment of a standard triangular infantry division. Shown at a demonstration of equipment held by United States Army Air Forces

Rear view showing how after end of fuselage opens to the complete heig...

Picryl description: Public domain photograph of a car, 1930s, free to use, no copyright restrictions.

Dr. Eleanor Hunt. Dr. Hunt measuring width of boy below buttocks II

Dr. Eleanor Hunt. Dr. Hunt measuring width of boy below buttocks II

Public domain photograph of midcentury American portrait, 1940s-1950s, free to use, no copyright restrictions image - Picryl description

Dr. Eleanor Hunt. Dr. Hunt measuring width of boy below buttocks I

Dr. Eleanor Hunt. Dr. Hunt measuring width of boy below buttocks I

Public domain photograph of midcentury American portrait, 1940s-1950s, free to use, no copyright restrictions image - Picryl description

Defense housing, Erie, Pennsylvania. Each defense trailer is located on a plot of ground 25 x 50 feet, assuring a fine degree of privacy and room for children to play. Standards set up by the Office of Emergency Management (OEM) Division of Defense Housing for trailers provide a minimum overall length and width to assure the least possible crowding. The trailers are protected from fire and the city's fire bureau regularly conducts inspections. Manager Ackerman and the Lawrence Park Commissioners see to it that the trailer camp is well policed

Defense housing, Erie, Pennsylvania. Each defense trailer is located o...

Picryl description: Public domain image of children in poverty during the Great Depression, migrant workers, free to use, no copyright restrictions.

White House steps renovated. Washington, D.C., June 24. For some reason while putting up a new fence around the White House, the stone steps leading to the executive offices were removed and are to be replace with steps of a smaller width, 6/24/38

White House steps renovated. Washington, D.C., June 24. For some reaso...

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

A black and white photo of a train car. Office of War Information Photograph

A black and white photo of a train car. Office of War Information Phot...

Title and other information from caption card. Transfer; United States. Office of War Information. Overseas Picture Division. Washington Division; 1944. More information about the FSA/OWI Collection is availabl... More

Production. Parachute cloth and shrouds. Silk parachute cloth is straightened, tentered to width, and finished in an Eastern plant. It will soon be ready for making into parachutes for American flyers

Production. Parachute cloth and shrouds. Silk parachute cloth is strai...

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

San Bernardino, California. A Pennsylvania Railroad freight car, built in June 1929, showing the exterior width, the exterior height, the interior length, the interior width, the interior height, and cubic foot volume

San Bernardino, California. A Pennsylvania Railroad freight car, built...

Public domain photograph of freight train, free to use, no copyright restrictions image - Picryl description

Goldthwait's map of the United States, British Provinces, Mexico, Central America, W. India Is. &c., exhibiting the railroads with their distances, single and double tracks and width of gauge.

Goldthwait's map of the United States, British Provinces, Mexico, Cent...

Shows drainage, relief by hachures, place names, and state boundaries. Scale ca. 1:7,000,000. Population figures appear to the left and bottom of the map. "Principal forts and military stations in the U.S." are... More

Army tent manufacture. Schaeffer Tent and Awning Company, Denver, Colorado. Some of the ninety-five eight-man pyramidal tents being manufactured per day by this small plant. In the background workers are sewing the sod cloths for these tents. Each tent is made to rigid Army Quartermaster Corps specifications which include such details as the length of stitches and the width of seams

Army tent manufacture. Schaeffer Tent and Awning Company, Denver, Col...

Public domain photograph of the United States military and military-industrial complex before World War Two, 1930s, free to use, no copyright restrictions image - Picryl description

Camp Beauty, Cañon de Chelle; walls 1,200 feet high, width of Cañon at this point about one fourth of a mile.

Camp Beauty, Cañon de Chelle; walls 1,200 feet high, width of Cañon at...

Original negative number: 13. Caption number on back of stereo: No. 25. Part of series: U.S. War Dept., Corps of Engineers; Geographical Explorations and Surveys West of 100th Meridian, Expedition of 1871; Lie... More

Conversion. Copper and brass processing. Gaging drawn brass bar. Brass or copper supplied in bars finds many uses in the Navy. Most frequently it is cut to short lengths and machined to form parts of machinery, guns, and other implements of war. While dimensions are apt to vary, even slightly, close tolerances as to width and thickness must be observed. Here an inspector is checking dimensions with a micrometer. Chase Copper and Brass Company, Euclid, Ohio

Conversion. Copper and brass processing. Gaging drawn brass bar. Brass...

Public domain photograph related to Great Depression, free to use, no copyright restrictions image - Picryl description