Statistics for occurrence #1 of “Doctor Warren” in chapter 17 of Frank Preston Stearns, Cambridge Sketches:

...ich has sometimes been advanced that Doctor Morton was necessarily indebted to Doctor Jackson for a knowledge of the hypnotic effect of ether is wholly gratuitous. We will now quote directly from Doctor Warren 's lecture on The Influence of Anaesthesia on the Surgery of the Nineteenth Century, delivered before the American Surgical Association in 1897: Morton having acquainted himself by conversati...
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