CORRESPONDEN'E MEDIAL JOUINAL electro-coagulation, with, the assurance that any untoward halipening can readily be located. Endoscopy in tubular structures is an unfortunate necessity, buLt to apply it to regions which can be more adequa-lely exposed and dealt with more accurately by a careful'iy planned approach does not seem to me to be an advance inl surgical procedure.-I am, etc.,
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