Plant growth in relation to wave-length balance
Subtitle: (with four plates
By: by Earl S. Johnston.
Series: Smithsonian miscellaneous collections -- v. 97, no. 2; Publication -- 3446; Publication (Smithsonian Institution) -- 3446.
Publisher: Smithsonian Institution
Published: 1938
Place of publication: City of Washington
Language: eng
Number of pages: 18
Subjects: Plants -- Effect of light on.; Growth (Plants)
Notes: "Literature cited": p. 16-17.