A contract between Alfonso, a Chinese settler, and Eugenio Remeau. The contract was to last for six months and lists the legal requirements of both the employee and the employer. Signed by Eugenio Remeau and Alfonso, who signed in Chinese.

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.

Collage of four scenic images of Rainbow Bridge and Elephant's Feet landforms.

Historical overview of the Grand Canyon.

Bill to establish the Grand Canyon as a National Park.

Magazine article describing the experience of flying over the Grand Canyon in a plane.