Plate VI. — Fig. 1. — Percheroii stallion, showiiifi condition at the time of purchase. 

 Fig. 2. Same stallion after dourine luul developed. Spot.s on side and croup give location 

 of plaques. (After Mohler, Bui. Xo. 142, Bu. An. Ind., U. S. Dep Agr.). 



