BY DR. OSCAR KATZ. 569 



{b) Another hare (which had survived from inoculation with some 

 dried blood taken by Dr. Bancroft, of Brisbane, Q. , from a hare that 

 had died in captivity) was/ec? upon cabbage-leaves infected with 1^ ccm. 

 of the same culture. 



Control : 

 (a) Of tivo control-rabbits (large vigorous animals ; both tame'f)^ fed 

 together in the same box upon food infected with 3 ccm. of the same 

 culture, 07ie (a long-haired black specimen) was found dead at 8.45 

 p.m., August 18th (i.e., about 57 hours after being fed). P.M., 

 Positive. 



The othe7' (a long-haired albino) was still alive on August 20th. (For 

 further treatment of this particular rabbit vide pp. 523-525.) 



(6) A control -rabbit (a tame long-haired albino) inoculated with a 

 small quantity of the same culture, was found dead at 8 a.m., 

 August 17th. 



Results : 



Both hares were found dead at 8 a.m., August 17th. P.M. (in each 

 case), Positive. 



Feeding op Guinea-pigs on Chicken-cholera Microbes. 



About guinea-pigs it is said that, when inoculated with such 

 microbes, they generally react by the formation, at the seat of 

 inoculation, of closed abscesses which, as a rule, pass away again 

 without being followed by a general infection and, as consequence, 

 by the death of the animals. I have not made any inoculation- 

 experiments, but, on the other hand, tried the effects of virulent 

 microbes introduced into guinea-pigs through the alimentary 



canal. 



On May 10th, 1889, at 2.30 p.m., 12 ccm. of a virulent broth-culture of the 

 microbes — obtained from virulent heart-blood of a rabbit, and incubated 

 for 24 hours at 37 75-37 ■9°C. — were uniformly sprinkled on, and made 

 to adhere to, fresh cabbage-leaves which were placed in a large box 



t Several tame rabbits (Angora) were sent to the Island in June, 1888, by Professor 

 Watson, of Adelaide, S.A. Most of those which were not used for chicken-cholera experi- 

 meats, exhibited "scab " later on, with which, I believe, they, or at least a portion, had 

 been infected by Professor Watson. 



