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sputa of consumptive persons, as well as substances polluted by the 

 same, and animals having the disease, as the centers of infection. 



The Council of Hygiene of the Department of the Seine published 

 the following rules for preventing the propagation of Tuberculosis, 

 in the Medical Gazette of Paris, Feb. 27, 1886. 



" The most active agent in the transmission of tuberculosis is the 

 sputum which should therefore never be deposited on the floor or on the 

 linen where it may be converted into a dangerous element. 



" The patients in question must be instructed to expectorate into 

 vessels containing sawdust, the contents of which must be daily 

 thrown into the fire, and the vessels themselves washed in boiling 

 water at least once a daj'. 



" The furnished apartment of a consumptive patient, especialh' in 

 case of death, must be thoroughly disinfected, together with all bed- 

 ding, and the clothing of such a patient must not be used until it has 

 been subjected to the action of steam. 



" Since sheep are far less susceptible to tuberculosis than cattle, it 

 would be far safer to recommend the rare flesh of that animal for 

 sickly children and adult invalids, than rare beef." 



Dr. Johne give the following very sensible recommendations which 

 may prove useful to farmers and stock-breeders, in stamping out this 

 disease in their herds. 



" All tuberculous animals or those with tuberculous tendencies 

 must be unconditionally excluded from breeding. 



" All animals diseased with tuberculosis must be separated from 

 healthy ones, and immediately slaughtered. Suspected ones should 

 be treated in the same manner. 



'■'■ Stables in which such animals have been kept must be thorough- 

 ly cleansed and disinfected. 



" Everything tending to cause a predisposition to disease must be 

 carefully avoided, and great care given to ventilation, diet, exercise 

 and exposure." 



There ought to be a careful and critical supervision, at the public 

 expense, of all slaughter houses and of the meat offered for sale in 

 our markets, and also frequent examinations of the herds kept for sup- 

 plying the public with milk, butter and cheese ; but as this will not 

 probably be secured immediately, it is a wise precaution adopted in 

 many families to boil all the milk and to cook thoroughly all the meat 

 used. Even then we shall have to take our chances on the butter and 

 '•heese used, since it is impracticable to boil the milk before the man- 

 ufacture of these products. 



It has been shown that boiling or roasting in the ordinary way is 

 not sufficient to destroy the germs in the center of large pieces of 

 meat, and that the bacilli will not be destroyed unless the heat is 

 sufficient to change the color of the animal juices. It has also been 

 shown that a temperature of 185' F. is sufficient to destroy the 

 virulence of tuberculous milk, and that this temperature will not 

 change its taste. 



