Environmental Conservation

Bulletin of the Califor Naturalist Club

Bulletin of the Califor Naturalist Club

List of birds identified within a twenty-mile radius of Charles City, in 1915. With additional notes.



7 pages, with bird drawing.

Errington, Paul

Paul Errington

The Paul L. Errington digital collection contains letters and correspondence between Errington and Aldo Leopold.

457 documents.


Hayden, Ada

Ada Hayden Papers

Ada Hayden was the first woman to earn a Doctor of Philosophy at Iowa State; she also became curator of the Herbarium, and added over 40,000 specimens to the collection.

173 images.

Iowa State Parks

Iowa State Parks

An exhibit exploring the origins of the Iowa State Parks system and Iowa State University’s contributions to the system’s development. Includes 65 images and documents, interactive content, and a bibliography.

65 images and documents.