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Credit
The vegetable anaesthetic : a safe and pleasant substitute for ether, chloroform, nitrous oxide, and all dangerous substances used to destroy pain in dentistry and surgery / discovered by Dr. U.K. Mayo, April, 1883. Public Domain Mark. Source: Wellcome Collection.
Provider
This material has been provided by the Harvey Cushing/John Hay Whitney Medical Library at Yale University, through the Medical Heritage Library. The original may be consulted at the Harvey Cushing/John Hay Whitney Medical Library at Yale University.