difference, the unwillingness of a man, after he has spent two hours, or twenty hours, on a good tooth-and that has hap¬ pened many times with me-then to tell the patient that the operation is a failure and that the tooth must be removed. That is the difficult point to make the dentist understand. It is a simple thing with the surgeon, and his confrère, the physician. Dentists have been brought up to look at these things as jobs, mechanical jobs; and they are afraid to tell their patients that

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... he operation is a failure and that in the interest of their health the tooth must be removed. That is the point I want to emphasize in regard to what Dr. Moorehead has said.