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THE ORGANISM IS A MICEOCOCCUS. 

 THE GELATINE IS NOT LIQUEFIED. 

 THE COLONIES AEE YELLOW, AS BAISED DEOPS. 



Staphylococcus cereus flavus (Passet), from pus ; resembles the other 



pus oooci ; is rather more Irregular in size ; sometimes forms 



short chains ; colonies lemon-coloured. 

 Micrococcus flavus tardigradns (Fltigge), from air and water ; large 



cocci, generally siiigle. ' 

 Micrococcus luteus (Oohn), from water ; small non-motile elements, 



forming a floooulent zoogloea. 

 Micrococcus aurantiacus, from water ; grows very slowly, forming 



small orange circular colonies ; oval cocci 1'5 jn in diameter. 

 Micrococcus fervidosus (Adametz), from water; colonies have a 



finely-toothed margin. 

 Micrococcus citrous, from water ; cocci 1'5 fj, in diameter, in pairs or 



chains. 

 Staphylococcus viridis flavescens (Guttmann), from the vesicles of 



varicella ; resembles Staphylococcus pyogenes aureus, but does 



not liquefy the gelatine ; the colonies are greenish-yellow. 

 Micrococcus ochroleucus, from urine ; cocci 0-5 to 0-8 [i in diameter, 



solitary, in pairs, or short chains ; the pigment is soluble in 



alcohol, and is decolourized by acids ; the colonies are rather 



branching in form. 

 Sarcina ventriculi, from the stomach; cells 2-5 fi, in diameter, 



generally appearing as diplocoeci or tetrads, rarely in packets. 



