New ether - a great medical discovery. ... Dr. J.H. Cotton, the inventor, is seen experimenting with the ether in a Boston hospital (on cat; with 2 other men) 1920 LCCN2003666661

New ether - a great medical discovery. ... Dr. J.H. Cotton, the inventor, is seen experimenting with the ether in a Boston hospital (on cat; with 2 other men) 1920 LCCN2003666661

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Author: Miscellaneous Items in High Demand, PPOC, Library of CongressSource: commons.wikimedia.org

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