The thoracic surgeon is playing an everincreasing role in the treatment of pulmonary tuberculosis. His vision is unbounded, and his techniques improve splendidly. Operative procedures, excellent in conception, and brilliant in execution, have become somewhat standardized, and yet the medical practitioner plans what shall be done for the tuberculous person, steers large numbers through successful cure regimes, and exercises control over those who go to surgery. If there is a difference of opinion between the surgeon and the physician, the decision of the physician is conclusive. On tuberculosis hospital services, the physician and the surgeon are a team. The surgeon and physician have, or are expected to have, a thorough knowledge of both the medical and the surgical aspects of the case. The attitude of most physicians to surgery is conservative, serving as a check upon trends toward surgical adventures. This has proven to be a satisfactory arrangement. The treatment of tuberculosis cannot be stated categorically. Each case must be studied and individual factors must determine types of treatment suitable for each. Perhaps some statement of what treatment seeks to accomplish is in order. Outstanding is the effort to change a positive sputum to a negative one. Obviously, this must occur in order to protect nearby and remote well tissues from invasion by bacilli, and also to protect those who come in contact with the tuberculous person. The conversion of a positive case to a negative one is a prime objective. When such conversion has been made permanent, the person returns to his community as a useful functioning entity, without danger to himself or to others. There are large numbers of cases of reinfection tuberculosis which have healed spontaneously when discovered by x-ray. Surveys of entire communities of apparently well populations uncover many cases of healed tu-