The origin of birds.
Publisher: Dover Publications
Published: 1972
Place of publication: New York
Language: eng
Number of pages: 209
Subjects: Birds, Fossil; Reptiles, Fossil; Birds -- Anatomy; Reptiles -- Anatomy; Phylogeny
Notes: "Literature": at end of each part.

"Unabridged republication of the work originally published by D. Appleton, 1927."  (without col.)
Table of contents: title: Some fossil birds.; title: Embryonic stages of reptiles and birds.; title: Some anatomical and biological data.; title: The proavian.