Specific action of remedies is a thing much desired in medicine, but rarely attained, as relatively few exist whose action can be depended on to be always the same. This is sometimes due to variation in the strength or quality of the remedy, and sometimes to the varying condition of disease.
Peroxid of hydrogen is a chemical combination of the ingredients of pure water, which always produces definite effects on the tissues with which it comes in contact, and under similar conditions will produce like results. But in order to have these results it is necessary that the article should be pure and fresh, for it is rather an unstable substance, and liable both to be imperfectly made and to alter and become less effective with time. In order, therefore, to secure the best results, great care should be exercised to secure a good preparation and that it be reasonably