inoculated, and the veterinarians say there is absolutely no
reason in all their experience for believing that the tuberculin
inoculation is followed by any injurious results.

In 1898 tuberculosis was found in the large Shorthorn herd belonging to W.
C. Edwards, of Canada, who with commendable promptness and public spirit
had his animals tested, and at once proceeded to separate the diseased from
the healthy animals. They were all finely bred animals, and of the very
class which we have been told are most susceptible to the injurious effects
of tuberculin. After using this test regularly for two years, Mr. Edwards
wrote as follows:

I have seen nothing to lead me to believe that the tuberculin test had
any injurious influence on the course of the disease. It is by no means
our opinion that the disease has been stimulated or aggravated by the
application of the tuberculin test. All animals that we have tested two
or three times continue as hale and hearty as they were previously, and
not one animal in our herds has broken down or failed in any way since
we began testing.

Mr. Edwards, in December, 1901, verbally stated that his views as to the
harmlessness of tuberculin remained unchanged, and that he had not seen the
least ill effect in any of his cattle from its use.

Those who have had most experience with tuberculin have failed to observe
any injurious effects following its use upon healthy cattle. With
tuberculous cattle it produces a fever of short duration, and in the great
majority of cases all derangement of the system which it causes disappears
within 48 hours after the tuberculin is administered. There appear to have
been a very few cases in which the disease was aggravated, and a greater
number in which it was benefited by the injection of tuberculin. The cases
of abortion following the tuberculin test have not been numerous, even when
cows were tested within a few weeks of the normal time of calving. The few
cases of this kind which have occurred may be explained by the fact that
abortion in cattle is a very common occurrence, and that it would
inevitably happen sometimes after the tuberculin test as a mere coincidence
and without any relation between the test and the loss of the calf. The
cases of abortion which have been cited appear to be no more numerous than
might be expected to have occurred among the same number of cattle within
the same period if the test had not been applied.