Author: Agriculture Department / Publish Year Decade: 1930 - 1939 - Blacklight Search Results

Start Over Author Agriculture Department Publish Year Decade 1930 - 1939

13371. Plant material. Collection and preservation of plant material for use in study of agriculture; by H. B. Derr and C. H. Lane.

Corporate/Agency Authors:: Plant Industry Bureau and Agriculture Department
Publisher:: Plant Industry Bureau
Date:: June 3, 1914, revised July, 1929 [reprint 1931
SuDoc number:: A 1.9:586/3-2

13372. Plants. Duration of flowerless condition of some plants in response to unfavorable lengths of day; by W. W. Garner and H. A. Allard.

Corporate/Agency Authors:: Plant Industry Bureau and Agriculture Department
Publisher:: Plant Industry Bureau
Date:: 1931
SuDoc number:: A 1.23/a:P 694/25

13373. Plants. Effect of abnormally long and short alternations of light and darkness on growth and development of plants; by W. W. Garner and H. A. Allard.

Corporate/Agency Authors:: Plant Industry Bureau and Agriculture Department
Publisher:: Plant Industry Bureau
Date:: 1931
SuDoc number:: A 1.23/a:P 694/23

13374. Plants. Hereditary mutations induced in plants by action of X rays; [by L. J. Stadler].

Corporate/Agency Authors:: Plant Industry Bureau and Agriculture Department
Publisher:: Plant Industry Bureau
Date:: [1931.]
SuDoc number:: A 1.10/a:1190

13375. Plants. Plant growth by artificial light has possibilities; [by W. W. Garner].

Corporate/Agency Authors:: Plant Industry Bureau and Agriculture Department
Publisher:: Plant Industry Bureau
Date:: [1931.]
SuDoc number:: A 1.10/a:1197

13376. Plants. Revised rules and regulations governing movement of plants and plant products into and out of District of Columbia, effective Apr. 30, 1931.

Corporate/Agency Authors:: Plant Quarantine and Control Administration and Agriculture Department
Publisher:: Plant Quarantine and Control Administration
Date:: [1931.]
SuDoc number:: A 48.8:P 69/931

13377. Plants. Rules and regulations governing (1) entry for immediate export, (2) entry for immediate transportation and exportation in bond, and (3) safeguarding arrival at port where entry or landing is not intended of prohibited plants and plant products, effective Aug. 1, 1920.

Corporate/Agency Authors:: Plant Quarantine and Control Administration and Agriculture Department
Publisher:: Plant Quarantine and Control Administration
Date:: [Reprint 1931.]
SuDoc number:: A 35.8:P 69/2/rep.

13378. Plants. Some phases of plant development under vitaglass [with list of literature cited]; by W. E. Tottingham and J. G. Moore.

Corporate/Agency Authors:: Agriculture Department
Publisher:: Agriculture Department
Date:: [1931.]
SuDoc number:: A 1.23/a:P 694/24

13379. Plumbing. Simple plumbing repairs in the home; [by George M. Warren].

Corporate/Agency Authors:: Public Roads Bureau and Agriculture Department
Publisher:: Public Roads Bureau
Date:: [Sept., 1925, reprint 1931.]
SuDoc number:: A 1.9:1460/1-5

13380. Pocket-gophers. Habits and economic status of pocket gophers [with bibliography]; by Theo. H. Scheffer.

Corporate/Agency Authors:: Biological Survey Bureau and Agriculture Department
Publisher:: Biological Survey Bureau
Date:: Jan. 1931
SuDoc number:: A 1.36:224

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