202 Diseases of Bone. 



The cancellated tissue is very delicate and friable, so much 

 so that the ossa innominata came to pieces during maceration. 

 The pelvis was peaked as in osteo-malacia, but there was none 

 of the greasiness found in that condition. G. C. 3228. 



Presented hy Charles W. Cathcart, F.R.C.S.E. 



6. 9. Senile Osteo-malacia of the Scapula— Right scapula 



from the same patient — macerated, to show the above. The 

 spine and superior angle were broken in removing the soft parts. 

 This bone shows characteristics similar to those seen in the 

 other bones of this subject, and the greater part of the venter is 

 as thin as paper. G. C. 3227. 



Presented hy Cka.^l'&h W. Cathcart, r.KC.S.E. 



6. 10. Senile Osteo-malacia of the Clavicle. — Left clavicle 



from the same patient — macerated, to show the above. 



Like the other bones from this subject, it is light and dry, 

 and deficient in muscular markings. G. C. 3226. 



Presented by Charles W. Cathcart, F.K.C.S.E. 



B, Changes from various local conditions aj^ecting the 

 nutrition of hone. 



6. 11. Deg-eneration of the Os Calcis from Disease of other 



Bones of the Foot. — Section of a right OS calcis — macerated, 

 to illustrate the above condition. The bone remains saturated 

 with oil, notwithstanding efforts to remove it. 



The patient had suffered for many years from tuberculosis of the 

 foot, affecting chiefly the soft parts, but extending to the tarsal and meta- 

 tarsal bones at the outer side. The os calcis was not affected by the 

 disease, and the changes seen were secondary to the real disease and quite 

 distinct from it. 



The bone tissue is very light, and is reduced to a transparent 

 film in many places. G. C. 3310. 



Presented by Charles W. Cathcart, F.R.C.S.E. 



