33 



impossible to define that stage. He then explained that in all 

 cases of udder infection the milk was virulent, but he does not 

 believe that milk is dangerous if the udder is not diseased, 

 hence in dealing with creameries the only animals which need 

 to be dealt with are those with diseased udders. He con- 

 sidered that if the milk before being given out from the cream- 

 eries was raised to 185 degrees Fahr., it would be completely 

 sterilized. He next stated that with regard to flesh of ani- 

 mals with advanced general tuberculosis if it was squeezed, 

 and the juice injected into the peritoneal cavity of the guinea 

 pig, it would invariably produce tuberculosis, yet the animal 

 might be fed for a long time on the muscle and no tubercle 

 would result ; hence there was no danger to be apprehended 

 from the ingestion of tuberculous flesh no matter how 

 advanced the disease might be. He remarked the condition 

 as being an extraordinary fact, which is difficult to explain 

 (Paenthesis). 



On being asked to make some suggestions as to what 

 experiments we might make at the experimental station at 

 Montreal, he suggested that we might dry sputum or tuber- 

 culous matter and pulverize it, then cause an animal to inhale 

 it and tuberculosis would follow ; for another animal mix the 

 tuberculous matter with the food and determine the result. 

 The contagiousness of tuberculosis was proved by the spread 

 of the disease from cohabitation in buildings. It was, of 

 course, 1-ess easily contracted in the fields. 



In Professor Nocard's opinion, thirty days should be allowed 

 between tuberculin tests and re-tests. 



He did not care to speak of his new tuberculin which was 

 really a secret belonging to the government. 



GERMANY. 



Professor Ostertag, of Berlin, is a firm believer in tuberculin 

 as a reliable test for tuberculosis. 



At present the German government can buy tuberculin 

 cheaper than they can make it but an extension of the Pro- 

 fessor's laboratories is contemplated and when this is com- 

 pleted, it is the intention of the government to manufacture 

 their own tuberculin. 

 3 



