PLATE ii. 



Micrococcus roseus. (Bumm.) Lehm. and Neum. 

 (Diplococcus roseus Bumm.) 



I. Gelatin stab culture, twenty days at room tem- 

 perature. 



II. Agar streak culture, thirty days at room tempera- 

 ture. The white reflex on the right side is not always so 

 marked. 



III. Agar stab culture, ten days at 22°. Stab canal. 



IV. Agar stab culture, ten days at 22°. Surface growth. 

 V. Agar plate, twelve days at 22°. X 50. Above, a 



superficial ; below, a deep colony. 



VI. Agar plate, fourteen days at 22°. X 50. More 

 delicate structure. Above, a superficial; below, deep 

 colonies. 



VII. Gelatin plate, eight days at 22°. X 50. Super- 

 ficial and deep colonies. 



IX. Potato culture. A culture of the Diploc. roseus, 

 grown upon a culture of anthrax ; ten days at room tem- 

 perature. 



X. Potato culture, twenty days at room temperature. 

 XIII. Microscopic preparation, from three-days'-old agar 

 culture. X 1000. The cocci are undergoing division. 



