Washing. After certain dilute chemicals have been recovered from the rubber, it is in the form of flocs or crumbs looking like popcorn. It is then washed and excess water is removed
Summary
Public domain photograph of West Virginia in 1930s, free to use, no copyright restrictions image - Picryl description
Tags
Date
01/01/1935
Location
Institute, 38.38371, -81.76541
Source
Library of Congress
Copyright info
No known restrictions on images made by the U.S. government; images copied from other sources may be restricted. For information, see U.S. Farm Security Administration/Office of War Information Black & White Photographs http://www.loc.gov/rr/print/res/071_fsab.html