162 



HOESES AND RIDIXa. 



sinew (the sprain of wliicli forms the curb), as a 

 string. I have supported the column in the same 

 manner in which the horse's hind leg is supported 

 by the foot. But as I am only treating of the part 

 Fig. 23. 



from the hock to the ankle, I will suppose that all 

 the part below the anlde is rigid, that is, that the 

 column and base is all in one piece. Now if a b be 

 an upright column, and c D a string fastened to the 

 column at D, and running through A to some point 

 above the column at c, it will be seen at once that 



