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Bacterium prodigiosum (Ehrenb.). Lehm. and Neum.

I. Gelatin stab culture, one day at 22o.
II. Agar streak culture, four days at 22o.
III. Agar stab culture, four days at 22°. Stab canal.
IV. Agar stab culture, four days at 22°. Surface growth.

V. Agar plate, from two to four days at 22o. Natural size. Colonies with and without color.

VI. Agar plate, eight days at 22o. X 60. Superficial colony reddish, deep one yellowish.

VII. Gelatin plate, two days at 22o. X 60. Superficial colony just beginning to sink in. VIII. Gelatin plate, two days at 22°. Natural size.

IX. Potato culture, eight days at 22°. Typical with metallic luster on the surface.

X. Potato culture, eight days at 22o. Atypical white growth.

XI. Microscopic preparation. Pure culture from agar. x 800. Stained with fuchsin.

XII. Bacteria with several flagella. X 1000. Stained according to Löffler.

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