SMITHSONIAN MISCELLANEOUS COLLECTION 



VOL. 61 NO. 8, PL. 3 



Fig. 1 



Fig. 2 



Fig. 3 



Fig. 4 



Fig. 5 



SENILE CHANGES IN THE HUMAN FEMUR 



Fig. i. 

 Fig. 2. 

 Fig. 3. 

 Fig. 4.- 

 Fig. 5. 



i; e sin f J^H=, l a .«> lore ? man - Large black spaces represent senile absorption of bone. 

 -A sing e Haversian system, much enlarged, without definite signs of senility. 

 A sin? if S avers . ,an system, muc , h enlarged, showing early signs of senility. 

 -A single Haversian system, much enlarged, showing a later stage of senility. 

 -A single Haversian system, much enlarged, showing the latest stage of senilitv. 



