The Extended Document. An Investigation of Information and Evidence in Photographs. Untitled (Friends of Photography) Documenting the "Unknown": The collection

Documenting the "Unknown": The collection highlights how photographers captured the American frontier

and Owen Edwards

drug addicts at Synanon

David Maisel

Carl Mydans

The Extended Document. An Investigation of Information and Evidence in Photographs. Untitled (Friends of Photography) Documenting the "Unknown": The collectionInternational Museum of Photography at George Eastman House, 1975. Introduction by William Jenkins. Exhibition catalog, stiff illustrated wraps, 32 pp., 23 illustrations. Checklist of 149 photographs and works in series by six photographers (John Baldessari, Thomas Barrow, Michael Bishop, Marcia Resnick, Richard W. Schaeffer and William Wegman). Includes photographers' biographies. Very good, scarce.