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 shock in necessary surgical operations,[12] the disappearance of blood-poisoning, hospital gangrene, and erysipelas, which were the scourges of our public institutions in a former generation, are immense gains, due to the discovery of anæsthetics, antiseptics, and to advancing sanitation. These blessings are the direct outcome of persevering and skilful clinical observation, of careful work in the laboratory, of humane experiment, and of happy accident; they are not derived from cruel experimentation. The successful control of that terrible disease--puerperal fever--which formerly destroyed such a multitude of women, is a striking conquest of humane method in modern medicine. When I was a student in La Maternité of Paris in 1849, this destructive malady of lying-in women produced a mortality varying from 10 to 15 per cent. But when I visited La Maternité in 1889 the mortality was reduced to a little over 1 per cent. This was due to rigorous cleanliness, sanitation, and the use of antiseptics, directed by the skilful _sage femme en chef_, Madame Henri, in spite of the old and unsuitable buildings and the depressing status of many of the patients. A still more satisfactory result is shown in the Clapham Maternity Hospital, in London, where not a single death occurred amongst the 760 cases first received into the institution. This excellent result still continues under the same administration. Of the 4,000 lying-in cases received in the hospital during the thirteen years it has existed, there has been no death from puerperal fever. This excellent record has been attained by scrupulous cleanliness, absolute isolation on the occurrence of suspicious symptoms, by excellent nursing, and constant oversight by the doctors in charge. Even in the out-patient department, where the conditions of living are not under such strict medical control, the deaths from this frightful malady have only amounted to 5 in 12,500 cases under the same enlightened direction.