40 Injuries of Bone. 



Bones. — Calvarium of an elderly person — macerated — to show 

 the fissured fracture as above. 



The injury was inflicted on the upper part of the cranium. 



On the right side the fissure has traversed the coronal 

 suture and has then passed into the parietal hone. 



On the left side on the posterior part of the frontal bone 

 there is a fissure more extensive on the inner than on the outer 

 table. B. C. 1. 2. M. 3. 



3. 3. Fracture of Calvarium with Sub-duralHsemorrhag-e. — 



Calvarium of an old person — macerated — with dura mater and 

 blood clot between it and the bone modelled in position, in wax. 



The bone was trephined and the greater part of the coagulum 

 removed with a teaspoon, but the patient died of concussion. 



Several fissures cross the course of the right middle 

 meningeal artery. It must have been ruptured. 



B. C. 1. 2. M. 5. 



3. 4. Fissured Fracture of the Skull, associated with 



Contre-COUp. — Skull-cap — macerated — in which portions of 

 the frontal and left parietal bones have been split. They are 

 wired in position. 



The patient was working at the Fortli Bridge, and fell from a 

 lieight, striking his left temple. He was brought to the Infirmary, 

 where he shortly afterwards died. 



At the post-mortem examination there was scarcely any injury to 

 the brnin on the left side, but on the right side there was great lacera- 

 tion, by contre-coup, of the temporo-sphenoidal and frontal lobes, and 

 from this he must have died. 



The fractures were merely fissures until the calvarium was 



sawn off. G. C. 2832. 



Presented by Professor T. Annandale. 



3. 5. Brain injured by Contre-coup.— Lower portion of the 



