34 



Dr. Charles Creigh ton, of Cambridge University, believes that bovine 

 and human tuberculosis are identical and mutually communicable. He 

 says (see London Lancet, June 19, 1880), 'that he believes a supposed 

 outbreak of typhoid fever which occurred in the industrial school to 

 have been in reality not typhoid, but i bovine tuberculosis. 7 " 



Dr. Lydten, of Carlsruhe, in his report upon tuberculosis to the Na- 

 tional Veterinary Congress, held in Brussels, September, 1883, con- 

 cludes, among other things, 



That there are clinical observations proving the transmission of tuberculosis from 

 animals toman through the use of the milk of phthisical animals ; that tuberculosis 

 is contagious, like glanders or lung plague ; and that contagion fills a more important 

 role than heredity in the propagation of disease. 



Professor Jahne, of Dresden, in a statement of results of all experi- 

 ments he could collect in 1882 upon the feeding of tuberculous matter 

 to various kinds of domestic animals, states that out of 322 animals 

 thus fed 43.5 per cent, took the disease, 51.1 did not, and in 5 per cent, 

 the result was doubtful. 



A large number of experimenters have investigated the transmission 

 of tubercle, and the results are convincing and conclusive. Dr. Kam- 

 merer, city physician of Vienna, regards infection of tuberculosis by 

 tuberculous meat and milk as quite as fruitful a source of disease as 

 heridity, to which it is usually traced, 



Professor Jahne considers it well proven that the milk of tuber- 

 culous cows is as capable of communicating the disease to man as to 

 their own offspring. Staug mentions a case of accidental infection 

 of the son of healthy parents by habitually drinking warm milk from 

 a tuberculous cow . Professor Dunme, of Berne, mentions a similar 

 case that came under his own observation. 



Dr. Bartley says that without going further into this examination, 

 we can see the extreme importance of careful inspection of all cows 

 whose milk is to be used as food, and it is unquestionably quite as im- 

 portant that all such animals should be inspected before and after 

 slaughter for human food. 



Any disease [says Dr. Bartley], whether contagious or not, which produces a con- 

 tinued febrile condition for a number of days, must be regarded as sufficient cause 

 for the exclusion of the milk of cows so affected. 



Dr. J. H. Eaymond, health commissioner for the city of Brooklyn, in 

 his report for 1884, says (pages 17 and 18) : 



We know that when the body is properly nourished individuals are more able to 

 withstand the attacks of disease, and even to escape them, than when from any cause 

 they are in a debilitated condition. 



My experience leads me to the conclusion that a very much greater proportion of 

 diseased animals is slaughtered and the meat of the same put upon the market than 

 is commonly believed. During the past summer inspectors have been stationed at 

 the slaughter-houses with reference to this detection of impure meat, and they have 

 thus been enabled to discover and condemn meat which would otherwise have found 

 its way into the market. In one of our large cities, at a not very distant date, scores 

 of immature veal were exposed for sale in public market, aud it was the opinion of 



