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Table of degrees of consanguinity

Public domain scan of a medieval manuscript, free to use, no copyright restrictions image - Picryl description.

Table of degrees of consanguinity

Public domain scan of a medieval manuscript, free to use, no copyright restrictions image - Picryl description.

Table of degrees of consanguinity

Public domain scan of a medieval manuscript, free to use, no copyright restrictions image - Picryl description.

Table of degrees of consanguinity

Public domain scan of a medieval manuscript, free to use, no copyright restrictions image - Picryl description.

A survey of Lake Champlain including Crown Point and St. Iohn's on which is fixed the line of forty five degrees north lattit. terminating the boundarys betwe[e]n the provinces of Quebec and New York agre[e]able to his Majesty's proclamation done by order and instruction of the Honourable James Murray, esqr., Governor of the Province of Quebec and the Honourable His Majestys Council

Scale ca. 1:127,000. Manuscript, pen-and-ink and watercolor. Relief shown pictorially and by shading. Sectioned and mounted on cloth backing. In pencil, lower left margin: No. 10. Includes descriptive notes and More

To the respectable public. Have a good end in view, and pursue it. Every friend of American freedom, rejoices to find a true and honest spirit of liberty prevailing in all ranks and degrees in this city. [Considering which of the two sets of res

Imprint 3.; On verso: S; July 25, 1774. Available also through the Library of Congress web site in two forms: as facsimile page images and as full text in SGML. Printed Ephemera Collection; Portfolio 106, Folder 25.

Map of Queens Village or Lloyd Neck in Queens County on the north side of Long Island in the Province (now State) of New York. Situated near the parallel of 41 degrees north lattitude.

Public domain scan of a 17th-18th-century map, vintage, old, free to use, no copyright restrictions - Picryl description.

The gradual abolition off the slave trade or leaving of sugar by degrees, British Cartoon Print

Print shows George III sitting at a table with the Queen and two of his daughters, and the Queen's Keeper of the Robes, Juliana Elizabeth Schwellenbergen holding a bottle of "Brandy", discussing the use of suga More

A map of part of the continent of North America : between the 35th and 51st degrees of north latitude, and extending from 89⁰ degrees of west longitude to the Pacific Ocean /

Relief shown by shading. Covers western North America, from Lake Michigan and Lake Superior to the Pacific Ocean, including southern Canada and northern Mexico. Pen-and-ink and watercolor. Available also throug More

Map of South America, extending from the equator to the parallel of 44 degrees.

Rand, McNally & Co.'s map of the United States showing, in six degrees the density of population, 1890.

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

Academic reception of the honorable delegates of universities, colleges and societies, Catholic University. Washington, D.C., Nov. 13. Among the many who attended the solemn observance of the semicentennial of the founding of the Catholic University of America where William W. Bishop, Librarian of the University of Michigan, Herbert Putnam, Librarian of Congress Emeritus, and the Right Reverend Henry Hyvernat, Andrews Professor of Biblical Archeology and Professor of Semetic Languages and Literatures at the Catholic University of America. Honorary degrees were conferred upon them

Public domain portrait photograph, free to use, no copyright restrictions image - Picryl description

Temporary Fence Improvements - National Parks Gallery

Note, the mock-up pictured here was constructed with "pencil points" at a 7 degree angle. However, the proposal would reduce the angle to 5 degrees as shown in the accompanying sketch.

Airplanes - Instruments - Manufacturing altimeters for the aviation section at the plant of the Taylor Instrument Companies, Rochester, N.Y. Heat compensating cabinet for Tycos Altimeters. Temperature is raised from room temperature to 40 degrees Centigrade. Air is kept in circulation with electric fans at each end and temperature is checked with standard thermometers, throughout the cabinet. Rec'd from Taylor Instrument Companies

Photographer: Rec'd from Taylor Instrument Companies Airplanes - Instruments Public domain photograph of industrial design, equipment, free to use, no copyright restrictions image - Picryl description

Colleges and Universities - Columbia University - Columbia University, New York, commencement, June 1918, at which honorary degrees were conferred on prominent men

Photographer: Bain News Service Colleges and Universities - Columbia University Public domain photograph related to the United States in World War One, free to use, no copyright restrictions image - Picryl description

Airplanes - Miscellaneous - Keeping tabs of Army fliers. This man is stationed in the observation tower at Mineola L.I. observing the flights of the Army aviators. Despite the cold, 3 degrees above zero, the fliers are continuing their training. Inter. Film Ser

Date Taken: 1917 Photographer: International Film Service Airplanes - Miscellaneous Public domain photograph related to the United States in World War One, free to use, no copyright restrictions image - Picry More

Airplanes - Instruments - Manufacturing altimeters for the aviation section at the plant of the Taylor Instrument Companies, Rochester, N.Y. Heat compensating cabinet for Tycos Altimeters. Temperature is lowered from room temperature to 10 degrees below ero centigrade. Rec'd from Taylor Instrument Companies

Photographer: Rec'd from Taylor Instrument Companies Airplanes - Instruments Public domain photograph related to the United States in World War One, free to use, no copyright restrictions image - Picryl description

Colleges and Universities - Columbia University - Honorary Degrees conferred at Columbia University, New York, Commencement, 1918

Original Caption: Honorary Degrees conferred at Columbia University, New York, Commencement, 1918. Left to right: Prof. Ferdinand Baldensperget, former French Army Captain, now French Literature Professor at More

Balloons - Miscellaneous Operations - Balloons. The men who hold the ropes are told to "hold at an agnel of 45 degrees. Fort Omaha Balloon Station

Photographer: Mutual Screen Telegram Balloons - Miscellaneous Operations Public domain image of a balloon aerostat, early aeronautics, no copyright restrictions image - Picryl description

Airplanes - Instruments - Testing altimeters under heat to 145 degrees C and under cold to -10 degree C in order that they may be compensated for all conditions encountered in flying. Every machine sent out is absolutely compensated. Made by Aero Instrument Corp., New York City

Photographer: Aero Instrument Corp Airplanes - Instruments Public domain photograph related to the United States in World War One, free to use, no copyright restrictions image - Picryl description

Colleges and Universities - Columbia University - Honorary degrees were conferred upon noted men of Great Britain and the United States. Photo shows the candidates marching from the gymnasium to the Chapel. Columbia University, New York City, New York

Photographer: Central News Photo Service Colleges and Universities - Columbia University Public domain photograph related to the United States in World War One, free to use, no copyright restrictions image - P More

Marion Newton and Ruth Williams preparing to wade in Rock Creek, after suffering with the intense heat of the past two days, when the thermometer recorded 104 degrees

National Photo Company Collection. Public domain photograph - historical image of Washington DC, United States, free to use, no copyright restrictions image - Picryl description

Post Master General Work tonight brodcasted by radio a message to the American public dealing with the postal service and its effect in varying degrees on every man, woman, and child in the country

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

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

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

Electric Institute of Washington. Room temperature reduced 10 degrees display III

Public domain photograph of commerce and advertising, 1920s-1930s America, free to use, no copyright restrictions image - Picryl description

Tests motors by synthetic cold. C.D. Bruce, of the automotive power plant section of the Bureau of Standards, makes a test of airplane motors to show how much coldness they can stand due to high altitude. The testing pipes get as cold as 53 degrees below zero. 12/30/30

Public domain photograph, 1910s-1920s portrait, American, free to use, no copyright restrictions image - Picryl description

Spring-like weather brings out dancers. With the thermometer registering 70 degrees, Washington experienced the hottest January 9 in 57 years bringing forth this unusual sight of the Stafford Pemberton dancers gambling on the green before the Lincoln Memorial reflecting pool with the Washington monument in the background

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

Electric Institute of Washington. Room temperature reduced 10 degrees display I

Public domain photograph of commerce and advertising, 1920s-1930s America, free to use, no copyright restrictions image - Picryl description

Electric Institute of Washington. Room temperature reduced 10 degrees display II

Public domain photograph of commerce and advertising, 1920s-1930s America, free to use, no copyright restrictions image - Picryl description

Government scientist cools water to -6ʺ without freezing it. Washington, D.C., Aug. 9. The belief that water freezes at 32 degrees fahrenheit has been blasted by Dr. N. Ernest Dorsey, scientist of the National Bureau of Standards. Neither does all water freeze at the same temperature. These discoveries have been made by Dr. Dorsey after experimenting with 37 specimens of water taken from lakes, canals, and other sources. He has cooled water until it was minus 6 degrees fahrenheit that is, 38 degrees colder that the so called freezing point of 32 degrees. Yet it remained liquid, 8/9/38

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

Panoramic view from Alton Ridge, Glacier National Park - 300 degrees to 60 degrees

Infrared image 316 taken from Alton Ridge, 300 degrees to 60 degrees (0 degrees) - Glacier National Park on 08/26/1935 by Lester Moe.

Panoramic view from Curly Bear Mountain, Glacier National Park - 300 degrees to 60 degrees

Infrared image 250 taken from Curly Bear Mountain, 300 degrees to 60 degrees (0 degrees) - Glacier National Park on 07/26/1935 by Lester Moe.

Panoramic view from Curly Bear Mountain, Glacier National Park - 60 degrees to 180 degrees

Infrared image 251 taken from Curly Bear Mountain, 60 degrees to 180 degrees (120 degrees) - Glacier National Park on 07/26/1935 by Lester Moe.

Panoramic view Milk Ridge - Roadside, Glacier National Park - 180 degrees to 300 degrees

Infrared image 289 taken roadside on Milk Ridge, 180 degrees to 300 degrees (240 degrees) - Glacier National Park on 08/20/1935 by Lester Moe.

Panoramic view of Goathaunt [sic] Mountain, Glacier National Park - 60 degrees to 180 degrees

Infrared image 284 taken from Goat Haunt Mountain, 60 degrees to 180 degrees (120 degrees) - Glacier National Park on 08/12/1935 by Lester Moe.

Panoramic view from Mount Brown, Glacier National Park - 180 degrees to 300 degrees

Infrared image 272 taken from Mount Brown, 180 degrees to 300 degrees (240 degrees) - Glacier National Park on 08/22/1935 by Lester Moe.

Panoramic view of Goathaunt [sic] Mountain, Glacier National Park - 300 degrees to 60 degrees

Infrared image 285 taken from Goat Haunt Mountain, 300 degrees to 60 degrees (0 degrees) - Glacier National Park on 08/12/1935 by Lester Moe. This image is very similar to image 283, with the trees in the fore More

Panoramic view from Huckleberry Mountain, Glacier National Park - 300 degrees to 60 degrees

Infrared image 247 taken from Huckleberry Mountain, 300 degrees to 60 degrees (0 degrees) - Glacier National Park on 07/30/1935 by Lester Moe.

Panoramic view from Elk Mountain, Glacier National Park - 180 degrees to 300 degrees

Infrared image 241 taken from Elk Mountain, 180 degrees to 300 degrees (240 degrees) - Glacier National Park on 07/31/1935 by Lester Moe.

Panoramic view from Mount Reynolds, Glacier National Park - 60 degrees to 180 degrees

Infrared image 275 taken from Mount Reynolds, 60 degrees to 180 degrees (120 degrees) - Glacier National Park on 08/23/1935 by Lester Moe.

Panoramic view from Indian Ridge, Glacier National Park - 180 degrees to 300 degrees

Infrared image 207 taken from Indian Ridge, 180 degrees to 300 degrees (240 degrees) - Glacier National Park on 07/21/1935 by Lester Moe.

Panoramic view from Elk Mountain, Glacier National Park - 180 degrees to 60 degrees

Infrared image 242 taken from Elk Mountain, 180 degrees to 60 degrees (0 degrees) - Glacier National Park on 07/31/1935 by Lester Moe.

Panoramic view from Crosley Ridge, Glacier National Park - 60 degrees to 180 degrees

Infrared image 261 taken from Crosley Ridge, 60 degrees to 180 degrees (120 degrees) - Glacier National Park on 08/07/1935 by Lester Moe.

Panoramic view of Glacier Park Garage, Glacier National Park - 180 degrees to 300 degrees

Infrared image 326 of park maintenance buildings taken from angle above structures, with mountains in the distance - 180 degrees to 300 degrees (240 degrees) - Glacier National Park on 09/17/1935 by Lester Moe.

Panoramic view from Scalplock Lookout, Glacier National Park - 300 degrees to 60 degrees

Infrared image 257 taken from Scalplock Lookout, 300 degrees to 60 degrees (0 degrees) - Glacier National Park on 07/27/1935 by Lester Moe.

Panoramic view from Apgar Lookout, Glacier National Park - 300 degrees to 60 degrees

Infrared image 244 taken from Apgar Lookout, 300 degrees to 60 degrees (0 degrees) - Glacier National Park on 07/29/1935 by Lester Moe.

Panoramic view Milk Ridge - Roadside, Glacier National Park - 300 degrees to 60 degrees

Infrared image 331 taken roadside on Milk Ridge, 300 degrees to 60 degrees (0 degrees) - Glacier National Park on 08/20/1935 by Lester Moe.

Panoramic view of Two Medecine [sic] - Roadside, Glacier National Park - 300 degrees to 60 degrees

Infrared image 334 taken of Two Medicine roadside, 300 degrees to 60 degrees (0 degrees) - Glacier National Park on 08/20/1935 by Lester Moe.

Panoramic view from Loneman Mountain, Glacier National Park - 60 degrees to 180 degrees

Infrared image 269 taken from Loneman Mountain, 60 degrees to 180 degrees (120 degrees) - Glacier National Park on 08/21/1935 by Lester Moe.

Panoramic view from Alton Ridge, Glacier National Park - 60 to 180 degrees

Infrared image 317 taken from Alton Ridge, 60 degrees to 180 degrees (120 degrees) - Glacier National Park on 08/26/1935 by Lester Moe.

Panoramic view from Sherburne Lake - Roadside, Glacier National Park - 300 degrees to 60 degrees

Infrared image 336 taken of Sherburne Lake, roadside, 300 degrees to 60 degrees (0 degrees) - Glacier National Park on 08/20/1935 by Lester Moe.

Panoramic view from Swiftcurrent Mountain, Glacier National Park - 300 degrees to 60 degrees

Infrared image 340 taken of Swiftcurrent Mountain, 300 degrees to 60 degrees (0 degrees) - Glacier National Park on 08/27/1935 by Lester Moe.

Panoramic view from Crosley Ridge, Glacier National Park - 300 degrees to 60 degrees

Infrared image 260 taken from Crosley Ridge, 300 degrees to 60 degrees (0 degrees) - Glacier National Park on 08/07/1935 by Lester Moe.

Panoramic view Milk Ridge - Roadside, Glacier National Park - 60 degrees to 180 degrees

Infrared image 290 taken roadside on Milk Ridge, 60 degrees to 180 degrees (120 degrees) - Glacier National Park on 08/20/1935 by Lester Moe.

Panoramic view from Apgar Lookout, Glacier National Park - 60 degrees to 180 degrees

Infrared image 245 taken from Apgar Lookout, 60 degrees to 180 degrees (120 degrees) - Glacier National Park on 07/29/1935 by Lester Moe.

Panoramic view of Two Medecine [sic] - Roadside, Glacier National Park - 60 degrees to 180 degrees

Infrared image 333 taken of Two Medicine roadside, 60 degrees to 180 degrees (120 degrees) - Glacier National Park on 08/20/1935 by Lester Moe.

Panoramic view from Sherburne Lake - Roadside, Glacier National Park - 180 degrees to 300 degrees

Infrared image 335 taken of Sherburne Lake, roadside, 180 degrees to 300 degrees (240 degrees) - Glacier National Park on 08/20/1935 by Lester Moe.

Panoramic view from Loneman Mountain, Glacier National Park - 300 degrees to 60 degrees

Infrared image 268 taken from Loneman Mountain, 300 degrees to 60 degrees (0 degrees) - Glacier National Park on 08/21/1935 by Lester Moe. Image very similar to # 270, however no degree numbers noted at the top More

Panoramic view from Mount Reynolds, Glacier National Park - 180 degrees to 300 degrees

Infrared image 274 taken from Mount Reynolds, 180 degrees to 300 degrees (240 degrees) - Glacier National Park on 08/23/1935 by Lester Moe.

Panoramic view from Indian Ridge, Glacier National Park - 60 degrees to 180 degrees

Infrared image 208 taken from Indian Ridge, 60 degrees to 180 degrees (120 degrees) - Glacier National Park on 07/21/1935 by Lester Moe.

Panoramic view from Curly Bear Mountain, Glacier National Park - 180 degrees to 300 degrees

Infrared image 249 taken from Curly Bear Mountain, 180 degrees to 300 degrees (240 degrees) - Glacier National Park on 07/26/1935 by Lester Moe.

Panoramic view from Huckleberry Mountain, Glacier National Park - 180 degrees to 300 degrees

Infrared image 246 taken from Huckleberry Mountain, 180 degrees to 300 degrees (240 degrees) - Glacier National Park on 07/30/1935 by Lester Moe.

Panoramic view from Mount Brown, Glacier National Park - 300 degrees to 60 degrees

Infrared image 271 taken from Mount Brown, 300 degrees to 60 degrees (0 degrees) - Glacier National Park on 08/22/1935 by Lester Moe.

Panoramic view from Huckleberry Mountain, Glacier National Park - 60 degrees to 180 degrees

Infrared image 240 taken from Huckleberry Mountain, 60 degrees to 180 degrees (120 degrees) - Glacier National Park on 07/30/1935 by Lester Moe.

Panoramic view from Swiftcurrent Mountain, Glacier National Park - 60 degrees to 180 degrees

Infrared image 341 taken of Swiftcurrent Mountain, 60 degrees to 180 degrees (120 degrees) - Glacier National Park on 08/27/1935 by Lester Moe.

Panoramic view from Swiftcurrent Mountain, Glacier National Park - 180 degrees to 300 degrees

Infrared image 339 taken of Swiftcurrent Mountain, 180 degrees to 300 degrees (240 degrees) - Glacier National Park on 08/27/1935 by Lester Moe.

Panoramic view of Goathaunt [sic] Mountain, Glacier National Park - 300 degrees to 60 degrees

Infrared image 283 taken from Goat Haunt Mountain, 300 degrees to 60 degrees (0 degrees) - Glacier National Park on 08/12/1935 by Lester Moe. Similar to image 285, trees and vegetation have not been removed in More

Panoramic view from Loneman Mountain, Glacier National Park - 300 degrees to 60 degrees

Infrared image 270 taken from Loneman Mountain, 300 degrees to 60 degrees (0 degrees) - Glacier National Park on 08/21/1935 by Lester Moe.

Panoramic view from Mount Reynolds, Glacier National Park - 300 degrees to 60 degrees

Infrared image 276 taken from Mount Reynolds, 300 degrees to 60 degrees (0 degrees) - Glacier National Park on 08/23/1935 by Lester Moe.

Panoramic view from Scalplock Mountain or Scalplock Lookout, Glacier National Park - 180 degrees to 300 degrees

Infrared image 256 taken from Scalplock Mountain or Scalplock Lookout, 180 degrees to 300 degrees (240 degrees) - Glacier National Park on 07/27/1935 by Lester Moe.

Panoramic view from Alton Ridge, Glacier National Park - 180 degrees to 300 degrees

Infrared image 315 taken from Alton Ridge, 180 degrees to 300 degrees (240 degrees) - Glacier National Park on 08/26/1935 by Lester Moe.

Panoramic view from Crosley Ridge, Glacier National Park - 180 degrees to 300 degrees

Infrared image 255 taken from Crosley Ridge, 180 degrees to 300 degrees (240 degrees) - Glacier National Park on 08/07/1935 by Lester Moe.

Panoramic view from Apgar Lookout, Glacier National Park - 180 degrees to 300 degrees

Infrared image 259 taken from Apgar Lookout, 180 degrees to 300 degrees (120 degrees) - Glacier National Park on 07/29/1935 by Lester Moe.

Panoramic view of Goathaunt [sic] Mountain, Glacier National Park - 180 degrees to 300 degrees

Infrared image 262 taken from Goat Haunt Mountain, 180 degrees to 300 degrees (240 degrees) - Glacier National Park on 08/12/1935 by Lester Moe. Since there are no degree numbers on the top of this image, the More

Panoramic view from Elk Mountain, Glacier National Park - 60 degrees to 180 degrees

Infrared image 243 taken from Elk Mountain, 60 degrees to 180 degrees (120 degrees) - Glacier National Park on 07/31/1935 by Lester Moe.

Panoramic view from Loneman Mountain, Glacier National Park - 180 degrees to 300 degrees

Infrared image 267 taken from Loneman Mountain, 180 degrees to 300 degrees (240 degrees) - Glacier National Park on 08/21/1935 by Lester Moe.

Panoramic view from Sherburne Lake - Roadside, Glacier National Park - 60 degrees to 180 degrees

Infrared image 337 taken of Sherburne Lake, roadside, 60 degrees to 180 degrees (120 degrees) - Glacier National Park on 08/20/1935 by Lester Moe.

Panoramic view of Two Medecine [sic] - Roadside, Glacier National Park - 180 degrees to 300 degrees

Infrared image 332 taken of Two Medicine roadside, 180 degrees to 300 degrees (240 degrees) - Glacier National Park on 08/20/1935 by Lester Moe.

Panoramic view from Mount Brown, Glacier National Park - 60 degrees to 180 degrees

Infrared image 273 taken from Mount Brown, 60 degrees to 180 degrees (120 degrees) - Glacier National Park on 08/22/1935 by Lester Moe.

Panoramic view from Scalplock Mountain or Scalplock Lookout, Glacier National Park - 60 degrees to 180 degrees

Infrared image 258 taken from Scalplock Mountain or Scalplock Lookout, 60 degrees to 180 degrees (120 degrees) - Glacier National Park on 07/27/1935 by Lester Moe.

Corn, dried up and lying in the field. The temperature was over one hundred degrees. Between Dallas and Waco, Texas

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

Scotch machine, Washington, D.C., September 8. This machine, exhibited at the World Power Conference which is being held here, is devised so as to use every inch of matter contained in coal. The coal is put in the rettort and heated to a temperature of 1832 degrees. From the smoke and gas, Tar, Ammonium Sulphite, sulphur, light oils and gas are derived and from the tar, medicines, aromatic oils, perfumes, dyes, and acids are derived. From the light oils, motor fuel is obtained. In short: this machine wastes nothing at all

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

Scotch machine, Washington, D.C., September 8. This machine, exhibited at the World Power Conference which is being held here, is devised so as to use every inch of matter contained in coal. The coal is put in the retort and heated to a temperature of 1832 degrees. From the smoke and gas, Tar, Ammonium Sulphite, sulphur, light oils and gas are derived and from the tar, medicines, aromatic oils, perfumes, dyes, and acids are derived. From the light oils, motor fuel is obtained. In short: this machine wastes nothing at all

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

"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

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

Correct way to bake turkey. An important step: this placing of the bird in the pan. It must be placed breast side down on a rack in an open, dry roaster. It is baked at an even temperature of between 300 and 350 degrees

Picryl description: Public domain photograph of chicken, poultry, agriculture, farm animals, free to use, no copyright restrictions.

3650 graduates received their degrees at University of California in May 1938. Stadium, University of Califorinia

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

Government scientist cools water to -6ʺ without freezing it. Washington, D.C., Aug. 9. The belief that water freezes at 32 degrees fahrenheit has been blasted by Dr. N. Ernest Dorsey, scientist of the National Bureau of Standards. Neither does all water freeze at the same temperature. These discoveries have been made by Dr. Dorsey after experimenting with 37 specimens of water taken from lakes, canals, and other sources. He has cooled water until it was minus 6 degrees fahrenheit that is, 38 degrees colder that the so called freezing point of 32 degrees. Yet it remained liquid, 8938

A black and white photo of a man playing chess, Library of Congress Harris and Ewing collection Title from unverified caption data received with the Harris & Ewing Collection. Gift; Harris & Ewing, Inc. 1955. More

Migratory boy, aged eleven, and his grandmother work side by side picking hops. Started work at five a.m. Photograph made at noon. Temperature 105 degrees. Oregon, Polk County, near Independence. See general caption number 45

Picryl description: Public domain image of a farmer, 1930s, 20th-century dust bowl era, free to use, no copyright restrictions.

Fatherless migratory family camped behind gas station. The mother is trying to support three boys by picking pears. Just arrived from Minnesota, she used to work in a restaurant there. Oldest boy, age ten, helped carry ladder from tree to tree Photograph made at end of day (temperature 106 degrees) when she returned from orchard. Yakima Valley, Washington

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

Receive honorary degrees. Washington, D.C., Feb. 23. Dr. Oswaldo Aranha, center, Brazilian Foreign Minister, receiving from Dr. Cloyd Heck Marvin, left, President of George Washington University, and honorary degree of Doctor of Laws at graduation exercises. On the right is American Ambassador from the U.S. to China, Nelson Johnson, who received a citation, 2-23-39

A group of men standing next to each other, Library of Congress Harris and Ewing collection Title from unverified caption data received with the Harris & Ewing Collection. Gift; Harris & Ewing, Inc. 1955. Gene More

Flash-cooking process used in preparing grapefruit juice for canning. Temperature is carried to 180 degrees, and is attained in a few seconds, thus retaining much of the original flavor. Weslaco, Texas

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

Young migrant worker brings his hops to weigh scales. From five a.m. until noon, when photograph was made, he had picked eighty pounds, which equals eighty cents. Temperature 105 degrees. Oregon, Polk County, near Independence

Picryl description: Public domain image of a farm, farmer, agriculture, early 20th century, free to use, no copyright restrictions.

House which adjoins that of family described in 19553-E. There are approximately one hundred such homes, each with about an acre at Highway City, California, which show various degrees of ability in self resettlement. Nearly all are on Works Progress Administration (WPA)

Picryl description: Public domain image of a great depression era, migrant workers, free to use, no copyright restrictions.

Receive honorary degrees. Washington, D.C., Feb. 23. Dr. Oswaldo Aranha, center, Brazilian Foreign Minister, receiving from Dr. Cloyd Heck Marvin, left, President of George Washington University, and honorary degree of Doctor of Laws at graduation exercises. On the right is American Ambassador from the U.S. to China, Nelson Johnson, who received a citation, 2-23-39

A group of men standing next to each other. Public domain portrait photograph, free to use, no copyright restrictions image - Picryl description

Negro children in rural school gathered around the stove as the room warms up in the morning. After school was in session the thermometer registered fifty degrees the entire morning. Creek County, Oklahoma

Picryl description: Public domain image of a school, preschool, children, education, free to use, no copyright restrictions.

XB-32 model wing with 15% chord sealed gap aileron. Flaps extended to 40 degrees. The first wind-tunnel report published by Ames Covered the XB-32 Test in the 7-by-10 No. ! and was authored by Roy P. Jackson and George L. Smith Jr. ARC-1969-AAL-1443

XB-32 model wing with 15% chord sealed gap aileron. Flaps extended to 40 degrees. The first wind-tunnel report published by Ames Covered the XB-32 Test in the 7-by-10 No. ! and was authored by Roy P. Jackson a More

Testing one of 12,000 General Electric electrically heated flying suits being made for the U.S. Air Corps, at sixty-three degrees below zero (Fahrenheit) in cold room at Fort Monmouth, New Jersey. D. C. Spooner, Jr., head of General Electric pioneer products division, Bridgeport, in suit

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

Aluminum. Reynolds Metal Company, Louisville, Kentucky. Ingots of "strong alloy" aluminum go through a rolling mill at a temperature of 800 degrees Fahrenheit

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

Boxed poultry in storage at twenty-four degrees below zero. Fulton Market cold storage plant, Chicago, Illinois

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

Boxed poultry in storage at twenty-four degrees below zero. Fulton Market cold storage plant, Chicago, Illinois

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