Elbow joint and wrist joint, shown in isolation, in 9 numbered illustrations. 5 illustrations of elbow joint showing humerus, radius and ulna with ligaments, showing joint in pronated and supinated postitions. Anterior views. 3 illustrations of wrist joint showing radius, ulna, carpal bones and metacarpus with ligaments, medial views. 1 illustration of wrist joint divided in cross section to show carpal bones and first metacarpal bones.