Excerpt from Plants Collected and Tested by Thomas A. Edison as Possible Sources of Domestic Rubber
In the early part of the 1920's, political, industrial, and military leaders in the United States became concerned that the rapidly expanding rubber plantation industry in the Far East had become our chief source of natural rubber. Wild sources of natural rubber had become relatively unimportant and no longer able to supply a significant portion of the needs of the United States for rubber. There was a danger that the United States might be cut off from its chief source of rubber in case of war or epidemic plant disease.
Four outstanding leaders in the United States initiated separate action designed to alleviate the dependence of the United States on sources of rubber on the far side of the world.
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