xii LIST OF ILLUSTRATIONS. 



FIG. PAGE 



8. ARTIFICIAL CULTIVATION OF CHOLERAIC COMMA-BACILLI 



IN ALKALINE PEPTONE GELATINE 47 



9. ARTIFICIAL CULTIVATION OF THE SAME COMMA-BACILLI 

 AS IN PRECEDING FIGURE IN ALKALINE PEPTONE 

 BROTH GELATINE 48 



10. ARTIFICIAL CULTIVATION OF THE SAME COMMA-BACILLI 



IN ALKALINE BEEF BROTH 49 



11. FROM A CULTIVATION OF CHOLERAIC COMMA-BACILLI 



IN LIQUEFIED GELATINE, AFTER SEVERAL WEEKS . 51 



12. PREPARATION OF A PURE CULTIVATION OF CHOLERAIC 



COMMA-BACILLI IN AGAR-AGAR MEAT-EXTRACT PEP- 

 TONE, SEVERAL MONTHS OLD 53 



13. PREPARATION OF A CULTIVATION OF CHOLERAIC COMMA- 



BACILLI IN EGG-ALBUMEN AND AGAR-AGAR, TEN 

 DAYS OLD 54 



14. FROM AN ARTIFICIAL CULTIVATION OF CHOLERAIC 



Mucus FLAKES ON DAMP LINEN 55 



15. PREPARATION OF A CULTIVATION OF CHOLERAIC COMMA- 



BACILLI ON DAMP LINEN AFTER THIRTY-SIX HOURS 56 



16. F"ROM A RECENT ARTIFICIAL CULTIVATION OF CHOLERAIC 



COMMA-BACILLI IN ALKALINE AGAR-AGAR JELLY. . 57 



17. FROM AN ARTIFICIAL CULTIVATION OF CHOLERAIC 



COMMA-BACILLI ON NEUTRAL AGAR-AGAR JELLY AT 

 ORDINARY TEMPERATURE, AFTER A FEW WEEKS . . 58 



