_Treatment._ This has been considered as mainly palliative. Special care of the general health and above all of the diet which should be moderate, farinaceous and laxative, protection against cold and wet, the correcting of any coexisting trouble of the urinary or generative organs, and the removal from all sources of generative excitement are important elements. Occasional small doses of Epsom or Glauber salts in draught or enema obviate rectal hyperæmia. Ergot, potassium iodide internally, and iodine or mercurial ointment to the perineum have had little good effect. Möller claims to have secured improvement from the injection into the prostate at intervals of fourteen days, of a solution of two parts each of tincture of iodine and iodide of potassium, and sixty parts of distilled water. A small hypodermic syringe is used and the injection is made through the rectum directly into the substance of the prostate. Glass has adopted the recent surgical alternative of castration, with the result of marked relief from the active symptoms in a number of cases, but with a more rapid advance through emaciation and marasmus to death in three or four weeks in others. We would suggest a careful antiseptic castration in such cases, to obviate any added trouble from absorbed toxins or sepsis. For the human subject, Lydston strongly advocates removal of the enlarged prostate by surgical means in strong, vigorous subjects, with healthy bladder and kidneys. The difficulty of such an operation in the dog is greatly enhanced by the relatively greater length of the pubio-ischiatic symphysis, and the lessened diameter of the pelvic cavity. Yet with the comparative immunity of the dog from suppuration, and the hopelessness of the case without such radical measure, and with the rigid application of an antiseptic technic, the operation would appear to be fully justified. It would be contra-indicated in all advanced cases, in which the prostate was the seat of active suppuration with discharge into the urethra, in cases complicated by urethritis, cystitis or nephritis, in cases in which there is marked prostration from sepsis or absorbed toxins, and generally in old, worn out and cachectic animals. Short of this, in cases complicated by cystitis, antiseptics by the stomach and as injections into the bladder are desirable. Eucalyptol in doses of ten minims four times a day, or beta naphthol, guaiacol, or phenol have been used in man. As injections mercuric chloride 1:20,000; boric acid, saturated solution; or carbolic acid ·5:100 (Lydston) may be used warm several times a day. TUBERCULOSIS OF THE PROSTATE.