288 



Bulletin 1Y8. 



TABLE No. II. 

 The Source of Pure Cultures of Micrococcus No. 2. 



Micrococcus No. 3. 



Morphology. — A micrococcus about 1//. in diameter. 



Staining. — Stained readily by the common anilin dyes employed 

 in the laboratory. 



Agar. — Growth is lemon yellow in color and somewhat viscid in 

 consistency. 



Alkaline houillon. — The fluid becomes slightly clouded wutli the 

 formation of a lemon yellow pellicile and deposition of a sediment 

 of the same color. The reaction remains alkaline. 



Milk. — The casein is precipitated in six days with an alkaline 

 reaction. It is rapidly digested during the few following days, form- 

 ing a yellowish liquid. 



Ten per cent gelatin, stal). — This medium is gradually trans- 

 formed by liquefaction into a fluid of yellow color. 



Fermentation tube. — Fermentation tubes containing a one per 

 cent solution of glucose or of lactose in bouillon, show a cloudiness 

 in the open arm of the tube only. The reaction remains alkaline. 



TABLE No. III. 

 The Source of Pure Cultures of Micrococcus No. 3. 



