The origin of the vertebrate limbs
Subtitle: recent evidence upon this problem from studies on primitive sharks
Published: 1906
Place of publication: Place of publication not identified]
Language: eng
Number of pages: 21
Subjects: Vertebrates; Chondrichthyes
Notes: Literature referred to : p. 19-21.

Reprinted from the Annals of the New York academy of sciences, vol. XVII, no. 2, pt. II, May 20, 1906.

Thesis (PH. D.)--Columbia university.