Several important papers have been written describing various aspects of pulmonary tuberculosis in negro races (Dumas, 1919; Borrel, 1920; Opie, 1924 and 1930; Report on South African Natives, 1932; Allen, 1932; Everett, 1933; Pinner and Kasper, 1932; Cummins, 1939; Israel and Payne, 1940). An acute course, with a high incidence of gross glandular enlargement and of tuberculous pneumonia, is we...