34 



SPIROCILETES. 



spirochaetes longitudinal division is described in Sp. 

 duttoni by Mayer and by Newstead; transverse by 

 Duval and Todd, and by Koch. In Sp. obermeieri, (Fig. 

 29), both longitudinal and transverse division are found 

 (Mackinnon; Nuttall, Fantham, and Porter). In Sp. 

 pallida, longitudinal division is upheld by Beer and by 



FIG. 28. Spirochaeta anodontae; transverse division. (Schellack.) 



Krzystalowicz and Siedlecki (Figs. 30, 31); transverse 

 by Levaditi and Yamamouchi. In Sp. vesperuginis, 

 Nicolle and Compte observed transverse division, 

 Gonder on the other hand longitudinal (Fig. 32). In 

 Sp. gallinarum, Borrel saw transverse division, Prowa- 

 zek, longitudinal (Fig. 33) ; the latter method is described 



