320 Diseases of Bone. 



lower third. The surface of the inner of the two nodes is the 

 more porous and irregular, B. C. i. 5. M. 56. jj 



6. 298. Syphilitic Enlargement of the Femup.— Posterior 



lialf of the upper end of a left femur — macerated, illustrating 

 the above. 



On the shaft there is an irregular thickening, which, as 

 the section shows, is chiefly of cancellated tissue. The 

 medullary cavity seems somewhat enlarged. W. C. G. 21. a. 



6. 299. Syphilitic Enlargement of the Femur.— Sections 

 of the upper end of the shaft of a right femur — macerated, 

 illustrating the above. 



There is great thickening of the surface, especially on the 

 inner side. The section shows that the enlargement has a 

 compact outer wall and a cancellated interior. The original 

 comj)act layer of the shaft of the bone is still traceable, 

 although about the middle of the enlargement it has been 

 opened out. W. C. G. 21. a. 



6. 300. Syphilitic Enlargement of the Femur. — Lower end 



of a left femur in section — macerated, illustrating the above. 



The bone is thickened all round, a little way above the 

 condyles. The section shows that the new bone is much con- 

 densed behind, but less so in front, and that the medullary 

 cavity at the seat of the thickening has been occupied by newly 

 formed cancellated tissue. B. C. i. 5, M. 5. 



6. 301. Syphilitic Enlargement of the Femur.— Anterior 



half of a left femur — macerated, illustrating the above. 



