Analytical study of the arterial vascularization of bones in man. In practice, all the bones were studied with the exception of the skull. It is an original study using micro-angiography with micropaque. This study is of value in diagnosis of the pathogenesis of certain bone conditions and in traumatologic and orthopaedic therapy. A number of problems remain, in particular venous vascularization, micro-circulation in cartilage or in the sub-chondral zone and, lastly, the dynamic aspects of this type of bony circulation. Further research will be directed towards these fields.