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-day s'-old agar 

 culture. X 1000. The cocci are undergoing division. 



