On photoperiodism, reproductive periodicity, and the annual migrations of birds and certain fishes
By: by William Rowan.
Contributors: Boston Society of Natural History.
Series: Proceedings of the Boston Society of Natural History -- v. 38, no. 6
Publisher: Boston Society of Natural History
Published: 1926
Place of publication: Boston
Language: eng
Number of pages: 189
Subjects: Birds -- Migration.
Other titles: Photoperiodism and migrations.
Notes: Running title: Photoperiodism and migrations.

Includes bibliographical references (p. [185]-189).