No. 20 



No. 33. 



This last, number 20, shows the ankle to be seriously 

 affected instead of the knee, while the foot is of very 

 similar form to that of cut number 22, wherein the 

 knee joint is afflicted. These difficulties are all easily 

 overcome, and the articulation can be made smooth 

 and frictionless by following the directions for form 

 of foot, given in the description under number 4, 

 which see. Don't use irregular thickness of iron to 

 overcome these defects, except in rare cases and as 

 directed in the paragraph, "Balancing the Foot with 

 Rasp, not Shoe,'" which study carefully. 



46 



