Besides those dermatoses which are known to be of tuberculous origin, like lupus vulgaris, tuberculosis verrucosa cutis and scrofuloderma, there are to-day numerous other skin lesions regarded as closely related to tuberculosis, if not entirely of tuberculous origin. One of them, lichen scrofulosus, the older Hebra regarded as associated with tuberculosis. He found that 90 per cent, of patients so afflicted were youthful individuals, with cervical and other kinds of lymphadenitis, periostitis, caries, necrosis, or affected with ulcerating scrofulodermata, symptoms which are characteristic of what we call "scrofulosis," making the name of lichen scrofulosus a proper one. In some inveterate cases of this disease acne-like lesions appear with or without pus formation. Hebra called them acne cachecticorum. He found it associated with a moist or dry seborrhea, causing the so-called pityriasis tabescentium. A third affection brought by him in connection with tuberculosis is chromophytosis. It appears with predilection in those