Fig. 13. 



Cover-glass specimen of the Lung Juice of an infected Mouse. 

 Magnifying power 1000. 



The baciUi are present in large numbers, singly and in masses. 



Fig. 14. 



A similar preparation as in Fig. 13. Magnifying power 1000. 

 A swollen leucocyte filled with the bacilli. 



Fig. 15. 



From a section through the Liver of Grouse dead of the Grouse 

 Disease, showing capillary blood-vessels filled with the Bacilli. Low 

 power. 



Fig. 16. 



From a similar preparation as Fig. 15, but more highly mag- 

 nified. 



Fig. 17. 



Cover-glass specimen of the blood of an infected Guinea-pig. 

 Magnifying power 1000. 



Numerous bacilli are seen, free and enclosed in leucocytes, the 

 latter much swollen and disintegrating. 



Fig. 18. 



Cover-glass specimen of the blood of an infected Ammer. 

 Magnifying power 1000. 



Amongst the blood-corpuscles are very numerously the bacilli. 



