﻿ILLUSTRATIONS. 



Plate I. 



Fif;. 1. T. pertenuis from human yaws lesion. 1 X 1500 (approximate). 



2. T. perienuis from human yaws lesion. 1 X 1500 (approximate). 



3. '/'. pertenuis from human yaws lesion. 1 X 1500 (approximate). 



4. '/'. pertenuis from human yaws lesion. 1 X 1200 (approximate). 



5. T. pertenuis from capillary tube culture, showing agglutination and prob- 



able longitudinal division. 1 X 1200 (approximate). Note compar- 

 ative size of treponema and cocci. 



6. Same. 1 X 1500. 



Plate II. 



Fro. 7. T. pertenuis from capillary tube culture, showing agglutination and prob- 

 able longitudinal division. 1 X 1500 (approximate). Note compar- 

 ative size of treponema and cocci. 

 8. T. pertenuis from inoculated yaws in monkey. 1 X 300 (approximate). 

 0. T. pertenuis from inoculated yaws in monkey. 1 X 1500 (approximate). 



10. T. pallidum from human syphilis. 1 X 1500 (approximate). 



11. T. pertenuis in degenerated area of epithelium of human yaws lesion. 



Levaditi method. 



Plate III. 



Fins. 12-15. Examples of yaws lesions as seen in Filipinos. 



Plate IV. 



Diagrammatic illustration of types exhibited by T. perienuis in stained prepa- 

 rations. 



467 



