20 



recovercd from all parts of the alimentar}^ caiial and from the 

 faeces. 



Rabbit VIII, weight, 310 grams, fed on Aspergilliis terreus. April 9, 

 fom- tubes. April 17, five tubes. April 20, four tubes. April 24, 

 eight tubes. April 26, Exitus. 



When examined the stomacli was found to be less filled with 

 food than had been the case in Rabbits v, vi, and vii. The caecum, 

 however, was much distended, and the small intestine empty. The 

 fungus was recovered from all along the intestine. 



Rabbit ix, weight, 270 grams, fed on Aspergillus fiimigatiis. Only 

 the spores of the fungus Avere used. April 21, spores from four 

 tubes given. April 23, Exitus. 



Postmortem examination showed the usual characteristics of a 

 filled stomach, much distended caecum, and practically empty small 

 intestine. The lungs and kidneys were perfectly health}^ and no 

 fungous growth in the intestine could be detected. The fungus 

 was recovered in platings from the stomach, small and large intestine. 

 and from the faeces. 



Rabbit x, weight, 280 grams, fed on Aspergillus niger. April 21. 

 four tubes. April 24, eight tubes. April 26, Exitus. 



Rabbit xi, weight, 342 grams, fed on Aspergillus nidulans. April 

 28, eight tubes. April 30, eight tubes. May 2, Exitus. 



Rabbit xii, weight, 378 grams, fed on Aspergillus flavus. April 24, 

 four tubes. April 26, eight tubes. April 28, Exitus. 



Rabbit xiii, weight, 398 grams, fed on Oidium lactis. April 21, 

 four tubes. April 23, four tubes. April 24, ten tubes. April 28, 

 eight tubes. No harmful effects were noticed. When after two 

 weeks the animal was killed and examined, the digestive apparatus 

 had a perfectly normal appearance. 



The rather unexpected results of the feeding of intestinal moulds 

 to rabbits demon stråte beyond doubt the virulent toxic action of 

 the mycelium and spores of the following species: Aspergillus 

 fumigatus, A. flavus, A. nidulans, A. niger, A. umbrinus, A. terreus. 

 Penicillium avellaneum, and P. divaricaUim. On the other hand, 

 Oidium lactis seems to be without any toxic effects. A very different 

 degree of toxicity is further noticeable among the toxic species. 



