64 Injuries of Bone. 



He was ploughing in Australia, and fell before the plough, which 

 dragged out this piece of bone. He recovered. 



Presented to Dr Struthers by his pupil, Mr John Thomson, 

 1862-63. G. C. 3470. 



Presented hy Trofessor Struthers, F.R.C.S.E., 1893. 



3. 63. Ununited Fracture of the Lower Jaw.— Right and 



left portions of the lower jaw of an adult — macerated — 

 showing the above. 



The ends of both pieces are atrophied, especially, however, 

 the right. This one is also smaller, and shows - less prominent 

 ridges for the attachment of the masseter, and has a smaller 

 and relatively shorter condyle. B. C. i. 1. M. 12. 



FRACTUEES OF THE SPINE. 



3. 64. Fracture of the Atlas and Axis.— Atlas and axis- 

 macerated — showing the above. 



The man from whom this specimen was taken had fallen from a 

 height of 50 feet, and, landing upon his shoulders, was instantly killed. The 

 dorsal part of his spine was also extensively injured. (See 3. 77.) 



The anterior arch of the atlas and the odontoid process of 

 the axis at its junction with the body are broken through, and 

 a portion of the former is broken off. B. C. 1. 4. M. 1, 



3. 65. Fracture of the Posterior Arch of the Atlas and 

 Odontoid Process of the Axis. — Wax cast of a fractured 



atlas and axis in which there had been great displacement with- 

 out any pressure upon the spinal cord. 



The patient from whom the specimen was taken was a powerful 

 though scrofulous man aged 32. Nine months before his death he had 

 fallen from a hay-rick, and landed on his occiput. He was stunned by the 

 fall, but was soon able to walk half a mile to see his doctor. In two days 

 he was attending to his ordinary work as an agricultural labourer, with 

 only stiffness of his neck. Symptoms of inflammation set iu at tJie seat of 



