The phototropic responses of Avena in relation to intensity and wave-length
By: by Charles Haig ...
Publisher: Lancaster press, inc.
Published: 1935
Place of publication: Lancaster, Pa.]
Language: eng
Number of pages: 324
Subjects: Phototropism; Plants; Effect of light on; Oats
Notes: Vita.

"Reprinted from Biological bulletin, vol. LXIX, no. 2, October, 1935."

Cover-title.

Thesis (PH. D.)--Columbia university, 1935.

Bibliography: p. 323-324.