ILLUSTRATION. 



Explanation of Plate I. 



Section through hippocampus of rabbit which died twenty days after intra- 

 muscular inoculation of emulsion of brain of dog number 1. Stained with eosin- 

 methylene blue, according to Lentz's method B. Zeiss: Compens.-oeular 12, obj. 

 apochromat. 2 mm homog. Immers. 3ST. A. 1.30, Tube length 160 mm. 



The nerve cell to the right at the top shows marked degeneration. The nucleus 

 stains a dull violet and is not marked off from the cell protoplasm, while the 

 -nucleolus stains deeper blue than in the other nerve cells. The "body" in the 

 upper part of the cell stains faintly and has four rather large "inner bodies," 

 while one "inner body" in the lower "body" is unusually large. These bodies are 

 probably closely related to the Lentz passage bodies. 



The Negri body in the cell on the left of the plate lies on top of the nucleus. 



461 



