Aneurysm of the carotid and basilar artery, shown in isolation with associated structures, in 10 numbered illustrations. 9 illustrations of carotid aneurysm shown with jugular vein, aorta, trachea, laryngeal cartilages and thyroid gland, various views. 1 illustration of basilar aneurysm, shown with circle of Willis, brainstem, and cerebellum, inferior view.