Outlines of a natural arrangement of the Falconidae
Publisher: Govt. Print. Off.
Published: 1875
Place of publication: Washington
Language: eng
Number of pages: 231
Subjects: Falconidae; Birds -- Classification.
Other titles: Natural arrangement of the Falconidae.
Notes: Cover title.

Binder's title: Natural arrangement of the Falconidae.

"Extracted from Bulletin of the United States Geological and Geographical Survey of the Territories, no. 4, second series".