333 



production of lesions in the animal tissue. That the cow would 

 react at a later date was almost a certainty. 



Such being the circumstances Mr. Atherton was advised to 

 liave the cow retested at a later date, consequently on October 

 16th I was called upon to agam test this animal. Upon this test 

 she gave a large typical reaction and was condemned and branded. 

 After careful post-mortem at the slaughter-house Dr. ]\Ionsarrat 

 reported that he was unable to find any lesions of tuberculosis. 

 This cannot be considered as meaning that there was an entire 

 absence of disease, but rather that the lesions were so small and 

 so few as to readily escape detection. It is very easy to overlook 

 a few small nodules in the substance of the large lung of a cow 

 or one or two small nodules in one of the numerous lymphatic 

 glands of the body, and one rapidly progressing lesion is enough 

 to cause a reaction to the test and reveal the presence of disease. 



I think we can safely say from the results of the post-mortem 

 examination that this cow was not a danger to public health at 

 this stage of the disease, but who can say when she would become 

 dangerous, who can say when she would begin to pass tubercule 

 bacteria in her milk and feces. I think that in a few months more 

 she would have become a real live danger to her owner and to any 

 animal with which she might become associated. 



This brings us to the question : what relation does the size of 

 the swelling in a reaction bear to the disease in the animal sys- 

 tem as demonstrated by post-mortem examination? It has been 

 demonstrated repeatedly by post-mortem examination that the size 

 of the reaction bears no direct relation to the amount of the 

 disease. That it has some important relations to the disease is 

 apparent. After much thought upon the subject and many post- 

 mortems I have reached the conclusion that while the size of the 

 swelling has no direct relation to the amount of disease it has a 

 Tery close relation to the progress and activity of the tubercle 

 bacteria within the animal system. This will vary as will the size 

 of the reaction vary as the resistance to the disease varies. 



Bacteriological Exainiiiation of the Milk Supply. 



During the last month twenty-five (25) samples of milk and 

 cream from different dairies were analized for their bacterial con- 

 tent with the following results : 



Xo. 1 — Mixed milk from Andrade, Moanalua, Bellina and Sa- 

 lina dairies. Exam, after 72 hours inc. at 27° C. 229.160 bact. 

 per cc. 



No. 2 — Same as above taken from purifying machine. Exam, 

 after 72 hours inc. at 27° C. 1,500 bact. per cc. 



No. 3 — George Holt dairy. Exam, after 72 hours inc. at 27"^ C. 

 823.330 bact. per cc. 



No. A — Same as above after passing through the purifier. 

 Exam, after 72 hours inc. at 27° C. 1330 bact. per cc. 



