Fractures of the Skull. 57 



some bone is still in process of separation. The trephine has 

 been thrice applied. G. C. 1156. 



Presented by Professor James Russell. 



3. 44. Septic Osteo-myelitis of the Skull, following" Injury. 



— Part of the frontal bone of a " scrofulous boy " — macerated 

 — showing a trephine opening and an irregular aperture from 

 disease; 



In consequence of a blow the bone became inflamed and carious, 

 and the trephine was applied "to evacuate the matter." 



On the outside the irregular, worm-eaten appearance 

 resembles the effect of tuberculosis, but the new bone thrown 

 out on the inside round the apertures more resembles the effect 

 of septic irritation. G. C. 990. 



3. 45. Septic Osteo-myelitis of the Skull, following Injury. 



— Portion of a right parietal bone, with the adjacent part of the 

 occipital bone — macerated — showing the effect which followed 

 an injury to the head. 



There has evidently been septic osteo-myelitis, followed by 

 necrosis. Most of the dead bone has been separated, but a 

 small piece in process of separation still remains. The results 

 of inflammation are much more numerous on the outer than on 

 the inner aspect of the bone. The patient has been trephined 

 as in the cases from which several of the previous specimens 

 were taken. G. C. 595. 



3. 46. Healed Fracture of the Skull.— Vault and part of the 



base of a skull, with an extensive old-standing fracture which 

 had healed. 



The marks of a fissure healed by bone are seen in the left 

 half of the frontal bone and in the right parietal bone. In the 

 line of the fissure, at the right side of the coronal suture, there 



