Harris & Ewing Collection

The Library of Congress online includes the 41,000 photographs in the Harris & Ewing Collection, all searchable.

A 1914 photograph of U.S. diplomat Alvey Augustus Adee, the 72-year old Second Assistant Secretary of State, who rode his bicycle to work and took annual bicycle tours in Europe until World War I.

1911 photograph of a street in Bogota, Colombia.

Camp Dix in 1918.

Entrance to Glacier National Park in 1914.
 

"Arthur Kochler, wood identification specialist of the Department of Agriculture, says the piece of wood he is holding is 12,000,000 years old. It is a fragment from a fossil log of redwood, 7 feet thick, found by workmen of the Reclamation Service buried 150 feet below the bed of the Yakima River in Washington. The log was petrified, buried in the lava flow from volcanoes which have been dead for millions of years, 11/30"