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the principal efforts of the Division have been directed toward 
the substitution ot the intra-dermal test tor tne subcutaneous test 
and It IS exceedingly gratilying to be able to report that tins new 
method has in no way failed to accomplish what was expected or 
hoped for from it. it has simply proved itself a blessmg, not 
alone to the inspectors administering it, but also to the others ana 
to the animals, in simpli tying the procedure by reducing the re- 
quired number of visits Irom eight to two and in obviating the 
necessity of keeping the animals confined at all, the injection, 
examination and marking being made while the animals are in 
the stanchions at milking time. The most gratifying feature of 
the test is, however, that after once explained to the owner he is 
able to see for himself whether his animals have reacted or not, 
and the very fact that he may be convinced by his own senses, 
and without having to take the inspector's word for it has made 
the new test, if not popular, at least less objectionable to the ob- 
structionists than was the old subcutaneous test. This feature 
has at the same time caused considerable annoyance and dissatis- 
faction in creating greater confidence in the results obtained by 
the new test and a consequent desire on the part of some of the 
owners of animals which had reacted to the old test, to have these 
animals retested by the intra-dermal method and, in case no reac- 
tion is obtained, to disregard the previous test entirely and to 
admit such "past reactors" to the clean herd. When, however, 
we consider that the old test is accepted by the entire civilized 
world as practically infallible, (over 98 per cent of more than 
100,000 official tests have been proven on post mortem examina- 
tion to be correct), and when every reacting animal which has 
been butchered here and on which a careful post-mortem has been 
made, has been proven to be affected with tuberculosis, then it 
would be folly to condemn, ignore or discard the results obtained 
by this test or to allow them to be superseded by the results of a 
subsequent negation test made by a new and comparatively un- 
tried method, however promising this method may seem. It must 
be kept in mind that outside of a few experimental tests made by 
Drs. Ward and Baker of California, we have absolutely no rec- 
ords in regard to the reliability of this test in support of the work 
done and the results obtained by this Division during the past 
few months, and that very little is known as to the effect a pre- 
vious subcutaneous test may have upon a subsequent intra-dermal 
test. We know in regard to the old test that there are great in- 
dividual discrepancies in the length of time required for the eft'ect 
of a previous test to disappear, that is, the length of time before 
which a tested animal will again react, and it is safe to surmise 
that similar differences and idiosyncrasies will obtain with the 
new method. And when we further consider that every authority 
of note on animal sanitation and especially on tuberculosis con- 
trol work maintains and advocates that ''an animal which has 
once, reacted to the tuberculin test should under no circumstances 
be placed in the sound herd," and that, — ''in whatever way the 
