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22 felt by the conscientious physician when life or death seems to depend upon his action, and he knows that medical resources are not equal to the occasion. It is a noble desire for the advancement of the beneficent art of medicine which makes the great body of busy doctors eagerly listen to those who are supposed to speak with authority, and hail with hope every announcement or supposed discovery which seems to promise improved practical results.

This is really a sound humane attitude of mind in that vast body of the profession who are unable, from the pressure of practical life, to devote themselves to investigation—a profession which has always had its heroes and martyrs, who have not shrunk from risking their lives in the service and for the advancement of their noble art.

Those also who are in the profession can most fully estimate the real and beneficial results, both in surgery and medicine, derived from careful and persistent research, notwithstanding the severe disappointment often caused by the theoretical error and unjustifiable practice resulting from rivalry in erroneous methods of investigation. The conquest of pain and diminution of nervous