32 Carnegie Institution Image: LOC's Public Domain Archive Public Domain Search}

Carnegie Institution--D.C. Public Library, Massachusetts. & N.Y. Aves., N.W., Washington, D.C.

Copyright by the American Press Assoc. Public domain photograph of historic place in Washington DC, free to use, no copyright restrictions image - Picryl description

Carnegie Institution. Atom bursting building and equipment on 16th St. II

Picryl description: Public domain image of an architectural element, dome, cathedral, classical architecture, free to use, no copyright restrictions.

Carnegie Institution. Atom bursting building and equipment on 16th St. I

The Theodor Horydczak Collection documents the architecture and social life of the Washington DC metropolitan area in the 1920s, 1930s, and 1940s.

Dr. Henry S. Washington, of the Carnegie Institution of Washington, is making a series of chemical analyses of the lavas of the volcanoes of the Hawaiian Islands for the purpose of studying the composition of the floor of the Pacific Ocean and the constitution of the earth

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

Dr. Henry S. Washington, of the Carnegie Institution of Washington, is making a series of chemical analyses of the lavas of the volcanoes of the Hawaiian Islands for the purpose of studying the composition of the floor of the Pacific Ocean and the constitution of the earth

A man standing in front of a shelf filled with jars, Library of Congress Harris and Ewing collection Title from unverified caption data on negative or negative sleeve. Date based on date of negatives in same r More

Carnegie Institution. Atom bursting building and equipment on 16th St. I

Public domain photograph of midcentury American office, workers, free to use, no copyright restrictions image - Picryl description

Carnegie Institution. Atom bursting building and equipment on 16th St. III

Public domain photograph of midcentury American architecture, free to use, no copyright restrictions image - Picryl description

Carnegie Institution. Atom bursting building and equipment on 16th St. II

Picryl description: Public domain image of an architectural element, dome, cathedral, classical architecture, free to use, no copyright restrictions.

Radio waves high flyers, Washington, D.C., Oct. 1. Experiments conducted by H.W. Wellex at the radio station of the Carnegie Institution have proven that radio waves travel a distance of 80 miles heavenword before they are reflected back to earth. Traveling like lightning as they ascend in to the ionosphere the radio impulses have to be measured in 10,000ths of second to accurately check the height reached before they return to the radio set

Public domain photograph of people in office, interior, the 1910s-1920s 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

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

Ex-President Hoover arrives to attend meeting at Carnegie Institution. Washington, D.C., Dec. 9. Ex-President Herbert Hoover accompanied by his Secretary Lawrence Richey snapped as they arrived for the annual meeting of the Board of Trustees of the Carnegie Institution of Washington. Mr. Hoover is a member of the Board of Trustees, 12/9/38

A black and white photo of two older men. Public domain portrait photograph, free to use, no copyright restrictions image - Picryl description

Ex-President Hoover arrives to attend meeting at Carnegie Institution. Washington, D.C., Dec. 9. Ex-President Herbert Hoover accompanied by his Secretary Lawrence Richey snapped as they arrived for the annual meeting of the Board of Trustees of the Carnegie Institution of Washington. Mr. Hoover is a member of the Board of Trustees, 12938

A black and white photo of two older men, Library of Congress Harris and Ewing collection Title from unverified caption data received with the Harris & Ewing Collection. Gift; Harris & Ewing, Inc. 1955. Genera More

Carnegie Institute of Washington, Department of Terrestrial Magnetism, Atomic Physics Observatory, 5241 Broad Branch Drive Northwest, Washington, District of Columbia, DC

Significance: The Atomic Physics Observatory (APO) was completed in 1938 to improve the capability of measuring the earth's magnetic fields which was undertaken by the Carnegie Institution of Washington's Depar More

Carnegie Institute of Washington, Department of Terrestrial Magnetism, Brass Foundry, 5241 Broad Branch Drive Northwest, Washington, District of Columbia, DC

Significance: This building originally served as a foundry to cast nonferrous materials for tools, measuring instruments, and various fasteners and fittings used in magnetic observations undertaken the Carnegie More

Carnegie Institution of Washington, 16th St. at intersection with P St., NW, Washington, D.C

Title, date, subject note, and keywords provided by the photographer. Credit line: The George F. Landegger Collection of District of Columbia Photographs in Carol M. Highsmith's America, Library of Congress, Pr More