Although references have been made to the injection of carbolic acid, it is desirable to indicate some of the more recent applications of this method. For this purpose the author has employed a five-per-cent solution, or one grain to twenty minims of sterilized water. This is injected beneath the affected part in cases of epithelioma, of scirrhus, of sarcoma, and other malignant growths. Besides the extraordinary improvement in the local condition, the diffusion of the infection to neighboring glands, and through the system at large, has in this way seemed to be prevented. The author has reason for believing that by this practice cures can be effected.

Recently the subcutaneous injection of carbolic acid has proved effective in the treatment of tetanus. Unquestionably under its use cases of tetanus so treated have got well. While in the case of malignant growths it is preferable to insert the solution deeply into the tissues beneath the malignant growth, in tetanus it may be injected at any convenient point. Thus far no toxic symptoms have been reported from the use of carbolic acid in this manner, but attention should be given to the urine, which would present the earliest indications of toxicity.