EXPERIMENT STATION BULLETINS. 



319 



meat as above, 

 boiled for fifteen 



rouglily by the butcher ; in the latter case, the muscles were taken in parts remote 

 from the tuberculous lesions \inder aseptic precautions. 



1 embody some of the report, as ipioted by Secretary Bryce of the Provincial Board 

 of Health for Ontario: "In 18!U, experiments with cooked meat were made. On May 

 21, 18!H, twenty-one healthy p;uinea pigs were divided into four lots and fed with meat 

 from diai)hraorm, spleen and lungs. It was minced, made into sausages and submitted 

 to different degrees of cooking, boiling and frying. In Pen A, meat was thoroughly 

 cooked; in B, underdone: in C, well boiled; in D, lightly boiled; in E, fed raw. 

 Feeding was repeated for three days. First experiments begun May 21, had failed 

 on July 10: second experiments begun July 17, were repeated for three days. The 

 arrangement and feeding of animals are as follows: 



"A, four guinea pigs fed (17th and 18th July) on raw tuberculous 



'•B, four guinea pigs fed (18th July) on meat as fed to A, but 

 minutes. 



"C, four guinea pigs fed on meat as above, but boiled for forty minutes. 



"D. Three guinea pigs originally fed on partially boiled meat on 21st April. 



"These three were inoculated on the 18th of July with pieces of the tuberculous 

 material from a tuberculous cow. Two died from blood poisoning within fifty-six 

 hours. The third one remained apparently healthy up to the 18th of September, 

 when it was killed and examined. Post-mortem examination showed well nourished 

 body, but extensive local tubercles at seat of inoculation (inner thigh). Lungs, spleen 

 and kidneys were also implicated. 



"Ist of August, 1891. — The one remaining guinea pig in D was transferred to X 

 (square box), and in D were placed four healthy young guinea pigs from stock. 

 The four were fed on ordinary food with milk from a tuberculous udder. This feed- 

 ing was continued for several days. 



"1st of August, 1891. — Animals in A, B and C were fed again as 

 namely : 



"A, raw meat. 



"B, boiled twenty minutes. 



"C, boiled forty minutes. 



"1st of August, 1891. — In E on this date are three guinea pigs as 

 raw, tuberculous meat on 21st of April and ordinary food ever since. 



"All the animals were then put on ordinary food (hay, oats and plenty of green 

 meat) until the 19th of September, when they were all sent to the Royal Veterinary 

 College for examination. 



Post-mortem results are seen in the following table: 



on 18th of July, 



original! v fed on 



Note. — T refers to organs tuberculous. 



