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11. Discovery by the late Dr. Horace Wells of the applicability of nitrous oxyd gas, sulphuric ether and other vapors in surgical operations: nearly two years before the patented discovery of Drs. Charles T. Jackson and W.T.G. Morton

14. An examination of the question of anaesthesia: arising on the memorial of Charles Thomas Wells : presented to the United States Senate, second session, thirty-second Congress, and referred to a Select committee, of which the Hon. Isaac P. Walker is chairman : prepared for the information of said Committee

15. An examination of the question of anaesthesia: arising on the memorial of Charles Thomas Wells : presented to the United States Senate, second session, thirty-second Congress, and referred to a Select committee, of which the Hon. Isaac P. Walker is chairman : prepared for the information of said Committee

18. Report of the Select Committee of the U.S. Senate (thirty-second Congress, second session) on the Subject of Anaesthesia: with remarks of J.P. Walker

20. Statements, supported by evidence, of Wm. T.G. Morton, M.D., on his claim to the discovery of the anaesthetic properties of ether: submitted to the honorable the Select Committee appointed by the Senate of the United States, 32d Congress, 2d session, January 21, 1853