452 
SOCIETY MEETINGS, 
on the part affected, but at best I would call such an animal 
only “ serviceably sound.” Hunters and hurdle horses are com¬ 
monly affected. 
Windgalls. —This is a distension of the sesamoid sheath 
which extends two inches above the fetlock or to the bifurca¬ 
tion of the suspensory ligament. It is due to hypersecretion of 
synovia and the absence of any rigid structures to prevent dis¬ 
tention laterally. This condition cannot be called an unsound¬ 
ness unless it causes lameness, which it does when distention 
from accumulation of synovia gives rigidity to the sheath. 
This is readily determined by forcing the animal to stand on 
the affected leg, when palpation reveals the amount of rigidity. 
They are common to all horses, but especially to racers. When 
soft to the touch it is not an unsoundness. 
Anterior Bursal Enlargements .—This condition is seen only 
on the hind leg in the bursae of the extensor pedis tendons in 
the front of the fetlock. It is generally due to falls, stumbling 
or knuckling. When infected they cause very acute lameness, 
swelling and pain. As the condition even when chronic readily 
yields to treatment the patient might be called serviceably 
sound. 
Thickening of the Fibrous Structures .—This subject is almost 
too indefinite for consideration, including as it does all the 
structures of the region except the osseous, vascular, nervous 
and epithelial. 
Knuckling .—Knuckling is an abnormal forward deviation 
in the direction of the phalanges, but must not be confused with 
straight pasterns. It is often symptomatic or may be due to 
contraction of the flexors. The diseases and conditions which 
may cause this trouble are too numerous to mention. It may 
be idiopathic, as seen in animals with upright pasterns. This 
is especially true when the animal is overworked or subjected 
to faulty shoeing. It is always an unsoundness. 
Interfering or Malformation. —This is a condition in which 
the moving leg strikes or cuffs the fellow, it is mostly seen in 
animals with narrow chest or with a faulty conformation of the 
leg or foot. Weariness, weakness, overwork or faulty shoeing, 
may be exciting causes. The striking may be slight or only 
enough to part the hair, or it may be sufficient to cut and bruise 
the part and cause lameness. When due to malformation it is 
an nnsoundness, but when the exciting causes prevail, it should 
be dealt with judiciously in justice to all concerned. 
Ringbone .—This is an exostosis on the os corona, os suffra- 
