Gunshot Fractures of the Femur. 163 



3. 336. Gunshot Fracture of the Shaft of the Femur.— 



Portions of bone from the above case — macerated : 



(a) A smooth piece removed immediately after the injury ; 

 (&) two necrosed pieces which were loosened and detached by the 

 granulations; (c) a portion, consisting of new bone, with a 

 small piece of the original bone on its under surface. 



B. C. xvii. 59. 



3. 337. Gunshot Fracture of the Shaft of the Femur.— 



Fragments removed from a case of the above — macerated. 

 The specimen was taken from a soldier wounded at AVaterloo. 

 The main fragments are three in number, but to the 

 middle one a smaller fragment — driven into the medullary 

 cavity — is adherent by newly formed bone. Upon all the 

 fragments there has been a deposit of bone. This is seen 

 mostly upon the periosteal surface, but at other places also. 

 Thus on the middle fragment a fine spongy projection on the 

 medullary aspect can easily be distinguished as new bone from 

 the neighbouring cancellous texture. Again, oa the lowest 

 • fragment new bone has grown from the broken margin of a 

 portion of the compact tissue. Portions of the broken margin 

 on the two lower pieces are smooth, and have evidently been in 

 process of separation. 



See Henueu's "Principles of Militaiy Surgery," p. 137, pi. i. fig. 3. 



P. P. C. 227. 



Presented by Professor John Thomson. 



3. 338. Gunshot Fracture of the Femur. — Fragments 

 removed from cases of the above — macerated. They illustrate 

 characters noted in some of the foregoing specimens. 



P. P. C. 228. 



3. 339. Necrosis of the Stump of a Femur after Amputa- 



