1. Staphylococcal infections come from skin lesions by contaminations of the blood.
2. The primary bone lesion in the human is determined by trauma.
3. Continued septicaemia favors the formation of supplementary bone lesions.
4. The bone lesion is in the metaphysis of a growing child.
5. The chief symptom is pain; the chief sign, tenderness over the involved metaphysis.
6. Treatment—early operation into the metaphysis for purpose of drainage.