68 



FRED W. TANNER 



TABLE 1 



Numerical system of recording the salient characters of an organism 

 {group number) 



Endospores produced 



Endospores not produced 



Aerobic (strict) 



Facultative anaerobic 



Anaerobic Cstrict) 



Gelatin liquefied 



Gelatin not liquefied 



Acid and gas from glucose 



Acid without gas from glucose 



No acid from glucose 



No growth with glucose 



Acid and gas from lactose 



Acid without gas from lactose 



No acid from lactose 



No growth with lactose 



Acid and gas from sucrose 



Acid without gas from sucrose 



No acid from sucrose 



No growth with sucrose 



Nitrates reduced with evolution of gas 



Nitrates not reduced 



Nitrates reduced without gas formation 



Fluorescent 



Violet chromogen 



Blue chromogen 



Green chromogen 



Yellow chromogen 



Orange chromogen 



Red chromogen 



Brown chromogen 



Pink chromogen 



Non-chromogenic 



Diastasic action on potato starch, strong 



Diastasic action on potato starch, feeble 

 Diastasic action on potato starch, absent 

 Acid and gas from glycerol 



Acid without gas from glycerol 

 No acid from glycerol 

 No growth with glycerol 

 The genus according to the system of A'ligula is given its proper symbol which 

 precedes the number thus: 



Bacillus coli (Esch.) Mig. becomes B 222.111102 

 Bacillus alkaligenes Petr. becomes B 212.333102 

 Pseud omonas campestris becomes Ps 211.333251 



Bacterium suicida (Mig.) becomes Bact. 222.232203 



