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Micrococcus roseus. (Bumm.) Lehm. and Neum.
(Diplococcus roseus Bumm.) I. Gelatin stab culture, twenty days at room temperature.
II. Agar streak culture, thirty days at room temperature. The white reflex on the right side is not always so marked.
III. Agar stab culture, ten days at 22°. Stab canal.
V. Agar plate, twelve days at 22o. 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 22o. 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 temperature.
X. Potato culture, twenty days at room temperature. XIII. Microscopic preparation, from three-days’-old agar culture. X 1000. The cocci are undergoing division.