Outlines of a natural arrangement of the Falconidæ
By: by Robert Ridgway.
Contributors: United States. Dept. of the Interior
Series: Miscellanea ornithologica -- v. 16
Publisher: Dept. of the Interior
Published: 1875
Place of publication: Washington
Language: eng
Subjects: Falcons
Other titles: Bulletin of the Geological and Geographical Survey of the Territories. 2nd ser, no. 4.
Notes: Cover title.

"June 10, 1875."

"Extracted from Bulletin of the Geological and Geographical Survey of the Territories, No. 4, Second Series."

Includes bibliographical references.

J.H. Fleming Collection.