402 
JOHN FAUST 
No reaction, 189 animals, - - (38.80 per cent.) 
Uncertain, 81 “ - - (16.66 “ “ ) 
Strong reaction, 216 “ - - (44-44 “ “ ) 
Total, 486 
The animals which had shown no reaction were again ex¬ 
amined and another injection given. The older animals being 
injected in October and November, 1891, and the younger 
ones in April, 1892. The possibility that perhaps one or the 
other had received too small a quantity of tuberculine was 
the reason for a second examination, and the dose given at 
the second examination was o. 1 tuberculine greater than the 
first. The 189 animals which showed no reaction at the first 
examination, gave the following result at the second: 
Healthy, 143 - - (75-66 per cent.) 
Sick, 39 - - (20.63 “ “ ) 
Uncertain, 7 - - ( 3 - 7 ° “ “ ) 
Total, 189 
The 81 animals which showed only a slight reaction at 
the first examination, gave the following result at a second 
investigation : 
No reaction (healthy), 42 (51.85 per cent.) 
Strong “ (sick), 36 - - (44-69 “ “ ) 
Uncertain, 3 - - ( 3-7 1 “ “ ) 
T otal, 81 
The result of both investigations of this herd of 486 ani¬ 
mals gave the following: 185 animals were healthy (38.06 
per cent.); and 291 sick, 10 uncertain (61.93 per cent.) 
The healthy animals were placed in the stable on the prin¬ 
cipal farm, after it had been thoroughly cleaned and disin¬ 
fected with corrosive sublimate and well aired during the 
summer, as long as the pasture of the animals lasted. The im¬ 
portant question for the management in regard to the diseased 
animals was : are the animals which have been found dis¬ 
eased by the tuberculine test of any further value for breeding 
purposes? The most natural thing to do would have been to 
have all slaughtered ; but as the number of diseased animals' 
