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541. Soil conservation. Our soil, its wastage, its preservation, Region 7 [Nebr.-Kans.-Okla.]

Corporate/Agency Authors:: Soil Conservation Service and Agriculture Department
Publisher:: Soil Conservation Service
Date:: [1936, revised 1938.] [1938.]
SuDoc number:: A 57.2:So 3/8/938

542. Soil conservation. Publications on soil conservation and related subjects.

Corporate/Agency Authors:: Soil Conservation Service and Agriculture Department
Publisher:: Soil Conservation Service
Date:: Jan. 1, 1938
SuDoc number:: A 57.2:P 96/3

543. Soil conservation. Soil conservation districts.

Corporate/Agency Authors:: Soil Conservation Service and Agriculture Department
Publisher:: Soil Conservation Service
Date:: [1938.]
SuDoc number:: A 57.2:So 3/5

544. Soil conservation. Ten billion little dams.

Corporate/Agency Authors:: Soil Conservation Service and Agriculture Department
Publisher:: Soil Conservation Service
Date:: [Reprint 1938.]
SuDoc number:: A 57.2:D 18/1-2

545. Soil erosion. Choice and arrangement of vegetation for erosion control; by R. Y. Bailey.

Corporate/Agency Authors:: Soil Conservation Service and Agriculture Department
Publisher:: Soil Conservation Service
Date:: [1938.]
SuDoc number:: A 57.2:Er 6/2T

546. Soil erosion. State legislation for erosion control; by Philip M. Glick.

Corporate/Agency Authors:: Soil Conservation Service and Agriculture Department
Publisher:: Soil Conservation Service
Date:: [1938.]
SuDoc number:: A 57.2:Er 6/3

547. Tree planting. Program for tree planting demonstration, sponsored by Center Farm Bureau, assisted by Soil Conservation Service and Extension Service.

Corporate/Agency Authors:: Soil Conservation Service and Agriculture Department
Publisher:: Soil Conservation Service
Date:: [1938.]
SuDoc number:: A 57.2:T 71

548. Headwaters, control and use, summary of fundamental principles and their application in conservation and utilization of waters and soils throughout headwater areas [with bibliographies], papers presented at Upstream Engineering Conference, held in Washington, D. C., Sept. 22 and 23, 1936.

Corporate/Agency Authors:: Soil Conservation Service
Publisher:: Soil Conservation Service
Date:: Apr. 1937
SuDoc number:: A 57.2:H 34

549. Topsoil, its preservation.

Corporate/Agency Authors:: Soil Conservation Service and Agriculture Department
Publisher:: Soil Conservation Service
Date:: [Feb.] 1937
SuDoc number:: A 57.2:T 62

550. Erosion control in the Northeast.

Corporate/Agency Authors:: Soil Conservation Service
Publisher:: Soil Conservation Service
Date:: [1937.]
SuDoc number:: A 57.2:Er 6

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