AS TO SOUNDNESS. 135 
(Fig. 9), greater liberty to bag or bulge forward. Now 
there must be a comfortable filling of the parts at all 
times, so that, the pressure being alike in both cases, 
a bent hock will always allow of a more pronounced 
appearance of bog-spavin than a straight hock without 
undue filling of the bursa. 
FIG. 9. 
Next to the presence er absence of lameness, I always 
judge of these cases by the amount of resistance they 
present on pressure. If I find them soft and yielding, 
and not tense and unyielding, I am satisfied that there 
is a normal condition of the parts, and that there is no 
. disease in the joint calling for an increased secretion 
