The astute surgeon, who gains the confidence of his patients and retains it, will not hesitate to remove by a suitable operation the tuberculous focus which he feels confident that he can reach and extirpate. The resulting tissue defects may be in many instances atoned for by plastic operations. At other times this procedure means _excision of some joint_, which leaves usually a much better functionating member than would the disease if permitted to go on to spontaneous recovery--_i. e._, ankylosis--and at the same time removes a focus of disease which is a menace if left to the future welfare of the patient. It may mean at other times _amputation_, but the artificial limbmaker now supplies a member vastly more useful than a natural one crippled by this infectious disease. In a general way, then, time may be saved and recovery ensured by early and judicious operation, while later in the course of this protean malady it may be absolutely necessitated in the endeavor to save life. After operations where clean extirpation and reunion of the parts with primary healing is impossible a local dressing of balsam of Peru containing 10 per cent. of guaiacol is recommended. Gauze saturated with this dressing and packed into the cavity best accomplishes the purposes of a surgical dressing for such cases. The superficial and ulcerative (skin) lesions due to tuberculosis often yield very readily to exposure to the Röntgen rays and the ultraviolet rays. Recrudescences appear not infrequently, and the treatment should be administered at intervals long after the apparent subsidence of the lesion. Deep pain of tuberculous lesions, especially in bone, is often relieved by _ignipuncture_, meaning thereby a perforation into the depth even of the bone-marrow by the actual cautery (Paquelin’s), which may be thrust directly through the skin or which may be used after exposing the bone by incision. The use of the actual cautery is indicated in eradicating and destroying tuberculous tissue when a neat dissection or extirpation is impossible.