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"Dirt.— As regards dirt, about half the samples were clean, and half contained a trace, but none
could be considered objectionable.
"Tuberculosis.— Two samples (Nos. 8 and 11) were repetitions of samples found positive in
September last (viz., Nos. 2 and 43, 1932, respectively). In the first, the animal died within one week
of inoculation, and the experiment was therefore frustrate, and the second was again found to be
positive. As these samples were collected with bias, they have been excluded from the calculations.
"Three other animals died within one month, and have also been excluded. One of these (No. 19)
died 14 days after inoculation, and was found to have extensive disease of the internal organs. The
condition did not resemble tuberculosis, no tubercle bacilli could be demonstrated, and a second animal
inoculated with pus from a lymphatic gland, failed to develop tuberculosis in six weeks.
"Forty-four samples have, therefore, to be considered, and of these, five were found to contain
living tubercle bacilli, namely, 11.1 per cent."
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