Once well established in a herd, tuberculosis is
very serious from the economic side, apart from
any questions of public hygiene. If the infection
becomes general, there will be the unsatisfactory
evidence of unthrifty calves and young stock and
from time to time an occasional cow will go down
with generalized "T.B.^' In any case, the public
and the more progressive breeders are so aroused
over the question that we are rapidly approaching
the time when all purchases of cattle will be condi-
tioned on passipg a tuberculin test. Solely from
the standpoint of satisfaction and dairy produc-
tion, no man can afford to keep an infected herd
and if we grant its transmission to man the case
for its eradication becomes infinitely stronger.
