It's a slow day for me today (don't tell my boss), so I took the opportunity to go look for cool pictures at Flickr Commons, searching for the word "dog." Here are four of the most interesting results:
Brooklyn Museum Archives via Flickr Commons
Paris Exposition: ship, Paris, France, 1900. View of a dog on deck of a ship. Brooklyn Museum Archives, Goodyear Archival Collection (S03_06_01_015 image 2049).
The George Eastman House via Flickr Commons
Dog Training | Accession Number: 1974:0056:0316 | Maker: William M. Vander Weyde (American 1871–1929) | Title: Dog Training | Date: ca. 1900 | Medium: negative, gelatin on glass | Dimensions: 8.5 x 6.5 inches
Charles O'Rear / National Archives via Flickr Commons
Original Caption: Hitchhiker with His Dog, "Tripper", on U.S. 66. U.S. 66 Crosses The Colorado River At Topock: 05/1972 | U.S. National Archives' Local Identifier: NWDNS-412-DA-6626 | From: Series: DOCUMERICA: The Environmental Protection Agency's Program to Photographically Document Subjects of Environmental Concern, compiled 1972-1977 (Record Group 412)
Bain News Service / Library of Congress via Flickr Commons
Mrs. J.M. Gray [between ca. 1910 and ca. 1915] 1 negative : glass ; 5 x 7 in. or smaller.