Fractures of the Thorax. 79 



3. 90. Old-standing" Lateral Dislocation of the last Dorsal 

 from the first Lumbar Vertebrae. — Lower six dorsal 



and upper four lumbar vertebrje, from a boy. The 

 specimen is in spirit, and the muscles are cleaned oflf, and 

 the spinal canal laid open from behind to show the results of 

 the above condition. 



He was knocked down by a stage-coach, and survived the accident 

 eleven months, although quite paralysed in his lower limbs. He died of 

 croup. 



The vertebrae are completely dislocated laterally. The 

 spinal cord is torn through, and its ends — indicated by bristles — 

 are seen about \h inch apart, embedded in fibrous tissue. 

 Along the front of the preparation a mass of new fibrous tissue 

 unites the bones. 



Figured in Bell's " Observations on Injuries of the Spine and Thigh 

 Bone," plate ii. figs. 2 and 3. 



B. C. 1. 4. M. 9. 



3. 91. Gunshot Injury of the Spine. — Bodies of two dorsal ver- 

 tebrae — macerated and dried — showing a round bullet embedded 

 at the back of one of them. 



The injury was received in an encounter with smugglers. The ball 

 perforated the lateral part of the bone, and was stopped by the longitudinal 

 ligament, which it pushed out so as to destroy the spinal cord. 



The bullet had evidently entered on the right side of the 

 body, and passed backwards. It has penetrated, without fractur- 

 ine;, the cancellous tissue. B. C. xvii. 11. 



TEACTUEES OF THE THOEAX. 



FRACTURE OF THE STERKUM. 



3. 92. Fracture of the Sternum. — Sternum and costal cartilages 

 of an adult, partially cleaned — in spirit — showing a fracture near 

 the lower end. 



A stone fell and crushed the man's chest, breaking several ribs, 

 about half-way round. The lung was compressed and bruised between 



