Anti-vivisectionists do not come in contact with disease all day and every day as medical men do; they therefore do not realise how widespread it is, and what terrible forms it may take. Their notions are vague; they talk about suffering without any intimate knowledge of the question. They bestow their sympathies upon the few victims of the vivisector's knife or syringe; they have none left for the larger number of victims which would have suffered if the few had not been sacrificed. Can it be wondered at that medical men, whose experience is so different to theirs, feel otherwise? The doctor's life is not one in which these are just a few painful partings with dear ones, but he is steeped in such experiences from morning till night. His sympathies aim at the relief and cure of all this evil; and the death of a few guinea-pigs or rabbits is a necessary incident which he has the courage to permit because of the greater good that is the ultimate result. There are, however, some of the examples which ought to stir better feelings even in the Anti-vivisectionist camp, namely, cases of diseases which are common or used to be common in our very midst, and which we need not go to India or Malta to look for. One of these is diphtheria, and the statements and statistics in relation to the almost miraculous change which has come over our ideas on this affection are incontrovertible, and are fully set forth in the following pages. The disease no longer inspires the terror it used to do, for it is one which can be cured, and easily cured, by the method of serum therapy. It has not, it is true, been stamped out, for up till the present success has not attended efforts of prevention. Prevention is better than cure, but cure is better than suffering and death. Just now, medical science can cure the disease, and if medical progress continues at its present rapid rate of growth, who can doubt that in the near future this disease, like typhus and typhoid, will be stamped out?