Osseous Tumours. 355 



6. 380. Exostoses of the Scapula. — Right scapula — macerated, 

 illustrating the above. 



The main projection is from the sub-scapular fossa ; others 

 arise from the inf ra-spinatus fossa and at the superior angle. 

 They are like ossifications in the corresponding muscles. 



B. C. I. 6. M. 16. 



6. 381. Exostoses of Humerus, — Right humerus — macerated, 

 illustrating the above. 



A long irregular piece of bone projects forwards in the 

 position of the bicipital groove, which it has replaced. Another 

 irregular piece projects inwards about three inches below the 

 head, and several smaller projections are seen on the back of the 

 bone just below the surgical neck. The deltoid impression is 

 also somewhat prominent. The head of the bone and the 

 tuberosities are small and ill-formed, and the muscular 

 impressions are comparatively faint. The articular surface has 

 lost its smoothness. This appearance of the head and tuber- 

 osities makes it probable that the shoulder-joint had been disused 

 for many years. The lower end of the bone seems normal. 



This bone may have belonged to the same patient as the 

 previous scapula, but there is no history to that effect. 



B, C. I. 6. M. 17. 



6. 382. Exostosis of Humerus. — Left humerus — macerated, 

 illustrating the above. 



A large and somewhat nodular mass of bone projects back- 

 wards and outwards from the upper half of the shaft. This 

 long outgrowth is for the most part in the position of the outer 

 head of the triceps, or between that and the deltoid. The 

 muscular impressions on the upper end are fairly well marked. 



B. C. I. 6. M. 19. 



