Visual acuity in the pigeon ...
By: by Ray D. Chard ...
Publisher: Lancaster press, inc.
Published: 1939
Place of publication: Lancaster, Pa
Language: eng
Number of pages: 608
Subjects: Vision; Pigeons
Notes: Cover-title.

"Reprinted from the Journal of experimental psychology, vol. 24, no. 6, June, 1939."

Thesis (PH. D.)--Princeton university, 1938.

"References": p. 607-608.