CliLAMYDOZOA 



193 



VACCINE 



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

 cinia. (After Tyzzer.) 



SCAKLET PEVEB 



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

 Cyclaslerion scarlatinoe. Radiate form shown in middle figure. (After Mallory'.) 



TBACHOMA 



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



BABIES OB HYDKOPHOBIA 



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 arc enclosed in a, ground substance supposed to bo extruded by the 

 nucleus. 



