CAHN, ROBERT KETCHUM, ROBERT GLENN American Photographers and The National Parks. The Viking Press, New York/ National Park Foundation, Washington DC, 1981. In-4 (33 x 28.5 cm). First edition, accompanied by a photolithograph ""Lake Tenaya, 1940. Yosemite National Park, California, by Edward Weston"" signed in the margin by Cole Weston. Photolithograph size 31.5 x 27 cm. 180 pp. Photographs by Minor White, Brett Weston, Carleton E. Watkins, Jerry N. Uelsmann, Gail Skoff, Timothy O'Sullivan, Ted Orlan, Eadweard J.Muybridge, David Mussina, Boone Morrison, Richard Misrach, Roger Minick, Joel Meyerowitz, Robert Glenn Ketchum, Charles V.Janda, William Henry Jackson, John K. Hillers, William Garnett, Lee Friedlander, George Fiske, Imogen Cunningham, Linda Connor, William Cliff, Paul Caponigro, Harry Callahan, Anne Brigman, Dave Bohn, William Bell, Ansel Adams. Cloth binding with gilt title, in slipcase with publisher's label (some foxing on label).