330 
THE TUBERCULIN TEST IN MASSACHUSETTS. 
1 
No. 73, ear tag 9612 . 
No. 91, ear tag 9685 . 
No. 122, ear tag 9610 
E. A. Jones. 
R. S. Fox. 
R, S. Fox. 
Of these I have nothing to say, further than that the search 
for lesions of the disease was as exhaustive and as thorough as 
the circumstances would permit, and, so far as gross appearances 
were to be trusted, no evidences of tuberculosis or of any other 
disease were to be found. 
A thorough ocular examination of the various bones was 
not, under the circumstances, practicable, and the bacteriological 
examination of the tissues is a matter for delicate microscopic 
research and prolonged inoculation experiments upon living 
animals. 
To sum up : of 129 reacting animals there were : 
Positively tuberculous. ^^5 
Questionable (No. .. ^ 
Negative (Nos. 73, 91, and 122). 3 
Total 
129 
Percentage of error, approximately, per cent. 
In the 20 non-reacting animals slaughtered for purposes of 
investigation, I found as follows : 
Non tuberculous. ^3 
Tuberculous. 
Questionable. ^ 
The tuberculous animals were these, viz. : 
No. 2, tag 9145 . 
No. 3, tag 9162 . 
No. 14, tag 9162. 
No. 15, tag 9173 
No. 18, tag 9104 
No. 20, tag 6587 
. .Jones. 
.Merrill. 
. . Jones. 
. Merrill. 
Thissell. 
. Merrill. 
In these animals the lesions were uniformly small and in the 
early stages. One of them. No. 15, tag 9173 (Merrill), had a 
minute calcified lesion in a bronchial gland, and was evidently 
a recovered case. . 
The questionable case was No. 17, tag 9119 (Jones), this 
animal was found to have in one bronchial lymphatic gland a 
small nodule, but whether or not of a tubercular nature can 
only be decided by microscopic ■examination. 
To sum up the whole matter: leaving out the two question¬ 
able cases, and comparing the results of the examinations with 
the reliability of tuberculin as a test, we find that in 148 ani¬ 
mals there were 3 which reacted that ought not to have 
reacted, and 6 which did not react that ought to have reacted. 
