Handwritten cover titled, "Nature Notes of Grand Canyon, Polyphemus Moth, Female, Found at Grand Canyon, 5 July 1928, Vol. 3 - No. 2." Cover includes a drawing of the moth.

Monthly bulletin, black and white, describing the natural history and scientific features of Grand Canyon National Park. This volume is dedicated in memoriam to Glen E. Sturdevant, park naturalist, and Fred Johnson, park ranger, who drowned while collecting specimens in the park.

Monthly bulletin, black and white, describing the natural history and scientific features of Grand Canyon National Park with cover drawing of fern bush.

Typescript report, black and white, describing the birds of Grand Canyon National Park with cover drawing of a bald eagle.

Typescript report, black and white, describing the mammals of Grand Canyon National Park with cover drawing of a bighorn sheep.

Article detailing Senator Ralph Cameron's attempt to purchase parts of the Grand Canyon.

Invitation to Carl T. Hayden for the dedication of Grand Canyon Lodge and the Kaibab Trail.

Publication detailing the natural history of the Grand Canyon. Vol.9, No.9. Circa 1926-1934.

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 John H. Page regarding his right to build a railway between Grand Canyon Station and the Canyon Copper Company's mines and hotel.