CHLAMYDOZOA 



193 



L.Q,.\> 



VACCINE 



Cornea cells showing developmental stages of Guarnieri bodies, Cytoryctes vac- 

 cinia. (After Tyzzer.) 



5 



SCARLET FEVER 



Epithelial cells of skin showing various stages in development of Mallory bodies, 

 Cydasterion scarlatincE. Radiate form shown in middle figure. (After Mallory.) 



-V.k. 



TRACHOMA 



Epithelial cell of conjunctiva showing Prowazek bodies. (After Halberstaedter.) 



RABIES OR HYDROPHOBIA 



Nerve cells of Ammon's horn of cerebrum showing Negri bodies, Neuroryctes 

 hydrophobicB. (After Maresch.) 



Fig. 59. — Various types of Chlamydozoa. Note that in each case the parasite- 

 like bodies are enclosed in a ground substance supposed to be extruded by the 

 nucleus. 



