Fig. 81. 



Part of a similar villus to that in Fig. 80, more highly magnified. 



At 1. Surface of villus covered with continuous masses of B. pestis, 

 which extend (2) in reticular formation between the tissue elements of the 

 villus ; exactly the same appearances as are shown by a villus in an active 

 state of an ordinary absorption with chyle, with the difference that in this 

 particular case the chyle globules are replaced by B. pestis. x 1000. 



Fig. 82. 



Transverse section through the affected part of the ileum of a rat dead 

 after feeding with plague material, i.e. with plague spleen dried in wheat. 



In the interior of the gut is a particle of material fixed a little above 

 the section to the inflamed and necrotic Peyer's gland. This particle con- 

 sists of a central mass of spleen tissue full of B. pestis, surrounded by semi- 

 digested wheat. 



The villi contain abundance of B. pestis similar to what was shown in 

 Figs. 80 and 81. x 25. 



