50 Injuries of Bone. 



3. 27. Fracture of the Skull. — Fragments of bone removed in a 

 recent case of fracture of the cranium — macerated. 

 Presented by Professor John Thomson. 



3. 28. Irregularity in the Thickness of the Skull.— " Portioi>. 



cut out by the trephine " — macerated — " showing the necessity of 

 inclining the instrument during the operation, owing to the 

 variable thickness of the bones." E. C. 1. 2. M. 14. 



3. 29. Irregularities in the Thickness of the Skull.— Skull-cap^ 



— macerated — showing fracture in the left temporal region, for 

 which trephining had been performed. 



The irregularities in the thickness of the skull at the seat 

 of operation and elsewhere are especially noteworthy. The 

 saw, in removing the calvarium, has taken away more of the 

 left than of the ri^ht side. E. C. 1. 2. M. 4. 



COMMINUTED FKACTUEES OF THE SKULL, WITH FISSURES LEADING 



FROM THEM. 



3. 30. Depressed Fracture, with Fissures and Separation 



of Sutures. — Skull-cap, apparently of a young subject — 

 macerated — showing the above. 



There has been a depressed fracture at the lower and 

 anterior part of the left parietal bone, and the trephine has 

 been applied, evidently to permit elevation of the fragments. 

 Longitudinal fissures more extensive on the inside pass back- 

 wards and forwards from the seat of injury. The coronal 

 suture has been forced apart for about two inches on either side 

 of the middle line, and. beyond that point on the right side, 

 the line of separation has been continued as a fracture passing 

 through the right parietal bone. F. P. C. 23. 



Presented ti/ Professor James Russell. 



