The first settling tank. The wood silt becomes water logged and goes to the bottom. The rubber floats, together with some cork, the latter being removed by forcing water into the air cells of the cork under 350 pounds pressure, which sinks in the settling tank. This picture is out of order, and should be in following the next two.
Full Collection Name
Guayule Rubber Industry in Salinas, California, ca. 1942
BANC PIC 1962.006:29--fALB
The Bancroft Library
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