Fractures of the Skull. 45 



temporal bone on both sides, but especially on the right, has 

 been somewhat loosened from its articulations. F. P. C. 30. 

 For other fractures, mvolving the base of the skull, see Xos. 3.35 to 3.38. 



COMMINUTED FRACTURES — CHIEFLY LOCALISED. 



3. 16. Post-mortem punctured Fractures of the Skull.— 



Macerated calvarium, which has been struck from the outside 

 with the small end of a hammer after death. 



On the outer aspect of the left parietal bone there are two 

 • small apertures with indented edges. On the inner aspect the 

 edges of these apertures are splintered off all round, and from 

 the posterior one fissures radiate in various directions. 



B. C. 1. 2. M. 8. 



3. 17. Depressed Fracture of the Frontal Bone.— Frontal 



bone — macerated — showing a depression above the riglit frontal 

 eminence. 



Where the bone has been struck, it has been comminuted 

 and driven in, and there is extensive splintering of the inner 

 table. A fissure passes backwards from the injured spot to the 

 coronal suture. 



The more extensive involvment of the inner table, in 

 such cases, is due to the direction of the injur}', i.e. from without 

 inwards, as illustrated in the previous specimen. F. P. C. 28. 

 Presented by Professor John Thomson. 



3.18. Depressed Fracture of the Left Parietal Bone.— 



Triangular portion of the left parietal bone of a soldier, showing 

 an oval depression on the outside with extensive splintering of 

 the inner table. 



" Lance -Corporal P was admitted to Hospital on 31st July 1892, 



suffering from a wound of the scalp, three inches long, exposing the bone, 



