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Box 5

 Container

Contains 13 Results:

Retting (Includes David Spence’s “Improvements in Guayule Rubber”.), 1927-1930

 File — Box: 5, Folder: 11
Dates: 1927-1930
Found in: Science History Institute Archives / David Spence: Guayule Rubber Project Records / Series I. Guayule Rubber Project Reports / Sub-series 2. Miscellaneous Reports

Retting - Allen and Emerson (“The Microbiological Improvement of Guayule Rubber by Shrub-Retting”), 1946

 File — Box: 5, Folder: 12
Dates: 1946
Found in: Science History Institute Archives / David Spence: Guayule Rubber Project Records / Series I. Guayule Rubber Project Reports / Sub-series 2. Miscellaneous Reports

Rubber Content of Guayule Seedlings 260-S, 1929-1930, 1944

 File — Box: 5, Folder: 13
Dates: 1929-1930, 1944
Found in: Science History Institute Archives / David Spence: Guayule Rubber Project Records / Series I. Guayule Rubber Project Reports / Sub-series 2. Miscellaneous Reports

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