S. atirriis, normal cells. Preparctl by 

 Foster and Woodrutl" 



S. tiiirrns, pcmcillin-inhihitccl cclU. 

 Prepared by Foster and Woodruff 



^ 



'I / 



/ 



/ 



B. subtilisy normal cells. Prepared 

 by Foster and Woodruff 





"A%. mnlandu^ normal cells. 

 Prepared by Starkey 



B. subtilis, penicillin-inhibited cells. 

 Prepared by Foster and Woodruff 



A-z. v'lnlamiii^ actinomycin-inhibited 

 cells. Prepared by Starkey 



Figure 26. Iniluence of antibiotic substances upon the morphology of bacteria. 



