83 books
Die Nord-Amerikanische Vogelwelt Volume Heft 1-10
The Birds of North and Middle America; A Descriptive Catalogue of the Higher Groups, Genera, Species, and Subspecies of Birds Known to Occur in
Directions for Collecting Birds, Issue 39, Part 1
Birds of the Galapagos Archipelago
Color Standards and Color Nomenclature
The Ornithology of Illinois Volume 2
The Ornithology of Illinois (Volume 1)
The Ornithology of Illinois (Volume 2 PT. 1)
A Nomenclature of Colors for Naturalists; And Compendium of Useful Knowledge for Ornithologists
The Ornithology of Illinois. Part I. Descriptive Catalogue
Catalogue of the Aquatic and Fish-Eating Birds Exhibited by the United Staes National Museum
