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C, The Cariofity of the Bone in the Joint of the 
Knee, communicated to the Os Femoris where- 
with it is anchylofed in 
C D > The Epiphyfis of the Os Femoris in the Joint 
of the Knee, deftroyed by the Cariofity. 
E y The lower End of the Bone, as yet in a natural 
State, with its Epiphyfes forming the internal 
Ankle. 
Fig. 4. 
A A, The anterior and internal Surface of the left 
Tibia, cut off in B y where the Bone was found : 
The oppofite End being carious, and perforated 
with many large Foramina or Openings made by the 
Matter flowing into the Joint of the Knee, from the 
medullary Cavity in the Bone. The Exfoliation, 
cccy feemingly found, is detached from the Cavity ; 
but is locked and wedged in by the Exoftojts , or cal- 
lous Matter indurated on the Surface, in fuch 
manner that it cannot be taken out without cut- 
ting off the Edges of it. 
dddd, The upper Part of the Bone, carious within 
and without, made rough and unequal by the Ex- 
ojlofay or callous Expanfion render'd carious. 
Fig. j. 
Ay Reprefents a Portion of the Os Humeri fawed off, 
at the time of the Amputation of the Limb 5 which 
is folder’d by an Anchylojis with the Cubitus B y and 
Radius C, in T> $ E being a large Exfoliation de- 
tached from them, where thofe Bones had been 
fhatter’d, which is wedged in by a callous Expan- 
sion, in fuch manner that it could not be taken out. 
F, 
