BY DR. OSCAR KATZ. 585 



(3) November 23rd, 5 p.m. 



One of two pigeons, taken out of a consignment of twelve obtained from 

 the Sydney markets, on 8th November — the remaining ten were with 

 two others placed in an aviary, where they were used for another 

 experiment — was killed by chloroform-narcosis. The contents of the 

 intestines, including a portion of the contents of the stomach, were 

 derived under proper precautions, and thoroughly mixed and shaken 

 ■with about 10 ccm. of sterile distinctly alkaline rabbit-broth in a test- 

 tube. 



(a) Of this mixture, 1 ccm. each was injected into a full-grown and a half- 

 grown rabbit soon afterwards. 



Results : 



The half-grown rabbit observed lying dead at 7.30 a.m., November 

 29th. P.M., Negative (both as regards appearance of organs and 

 microscopical examination of liver-blood). 



The full-grown rabbit being still alive at 10 a.m., December 2nd, was 

 removed from its hutch. 



(6) The above mixture was, after the 2 ccm. had been taken out, put into 

 a thermostat where it remained for about 24 hours at about 39* C. 



November 24th, 5.30 p.m. 

 A full-grown rabbit received J ccm. =4 minims, 

 A half-grown rabbit received J ccm. =2 minims 



of the culture obtained from the mixture. 

 Results : 



The full-grown rabbit died at 11.30 a.m., November 30th. P.M., 



Negative. 



The half-grown rabbit observed to die at 7.30 a.m., November 25th. 



P.M., Negative. 



{4b) December 11th, noon. 



The remaining of the two pigeons was killed by chloroform-narcosis. 

 About half the contents of the intestines, including part of the con- 

 tents of the stomach, were transferred to a spacious test-tube contain- 

 ing about 15 ccm. of sterile rabbit-broth which was of a distinctly 

 alkaline reaction. 



The mixture after being well-shaken showed still a slightly alkaline 

 reaction. The tube was at once placed in the thermostat at 38"^ C. to 

 SSf C, for about twenty-four hours. 



