24 
Farmers’ Bulletin 1069. 
Fig. 15.—An accredited herd of pure bred Milking Shorthorns, Virginia. 
herds. General experience shows that it is sound practice, if there 
is any doubt, to use all three methods of testing with tuberculin. 
Such a policy is especially applicable to cattle which have been tested 
frequently, and among herds which are or have been extensively 
diseased. 
Fig. 16.—An accredited Brown Swiss herd, Indiana. 
