Letter from A. F. Potter to Carl T. Hayden describing John H. Page's request to build a railway for the Canyon Copper Company as "impractical."
Letter from A. F. Potter to John H. Page referring his request to build a railway to the District Forester at Albuquerque, New Mexico.
Letter from A. F. Potter to Carl Hayden regarding W. W. Bass's livery permit. Bass's fee to maintain the roads has been reduced to $50 per year, but he will still need to keep his business at least a hundred feet from the Grand Canyon rim so as not to disturb visitors.
Geological examination of the park canyonland, with description of the rocks, water sculping process, volcanic cones and outflows, and land erosion. This edition is Volume 2, 1977 reprint, of the author's 1882 monograph. Includes 12 color maps, 10 color views and is number 280/1500.