Treatment in six cases of a total of 724 cases of chronic osteomyelitis was sequestrectomy, saucerization, removal of infected granulation tissue, and secondary skin-grafting. Primary skin-grafting had failed in the two patients in whom it was used. Secondary skin-grafting was done at ten days to four weeks after treatment was begun. The take was from 25 to 80 per cent at the time of the first dressing change. Skin-grafting allowed wide excision of infected skin and helped in obliteration of cavities.