Tuberculosis. 137 



may be diluted in 100,000 times its volume of water and yet 

 remain infecting. But again the glutinous saliva forms a pro- 

 tecting coating which strongly resists dilution. 



Infection of Man Throtigh the yJ/z7-^.— Instances of accidental 

 tuberculosis of the human being through drinking the unsterilized 

 milk are no longer wanting. 



In the practice of Dr. Stang of Amorback, a well developed five 

 year old boy, from sound parents, whose ancestors on both male 

 and female sides were free from hereditary taint, succumbed, after 

 a few week's illness with acute milliary tuberculosis of the lungs 

 and enormously enlarged mesentric glands. A short time before 

 the parents had their family cow killed and found her the victim 

 of advanced pulmonary tuberculosis. (I,ydtin). 



Dr. Demme records the cases of four infants in the Child's 

 Hospital at Berne, the issue of sound parents, without any tuber- 

 culosis ancestry, that died of intestinal and mesenteric tuberculosis, 

 as the result of feeding on the unsterilized milk of tuberculous 

 cows. These were the only cases in which he was able to exclude 

 the possibility of other causes for the disease, but in these he was 

 satisfied that the milk was alone to blame. 



After a lecture of the author's at Providence, R. I., a gentleman 

 of North Hadley, Mass., a graduate of the Massachusetts Agri- 

 cultural College, publicly stated that his only child, a strong, 

 vigorous boy of one and one-half years, went to an uncle's for 

 one week and drank the milk of a cow which was shortly after 

 condemned and killed in a state of generalized tuberculosis. In 

 six weeks the child was noticeably falling off and in three months 

 he died, a mere skeleton, with tuberculosis of the abdomen. The 

 father could trace no tuberculosis among his near ancestors, but 

 the mother's father and uncle had both died of it. She remains 

 in excellent health. 



Dr. E. O. Shakespeare {^Med. Neivs, March 26th, 1892) attrib- 

 utes one-fifth of all deaths in infants and young children, feeding 

 on milk, to tuberculosis usually commencing in some part of the 

 digestive organs. 



Identity of tuberculosis in cattle and man. — This is abundantly 

 proved in the above instances of the infection of man through 

 the milk and in the hundreds of cases in which the tubercle of 



