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Bacterium fluorescens. Lehm. and Neum. (Bacillus

fluorescens liquefaciens. Flügge.)
I. Gelatin stab culture, two days at 22o.
II. Gelatin stab culture, eight days at 22o.
III. Agar streak culture, three days at 22o.
IV. Agar stab culture, four days at 22°.
V. Gelatin plate, two days at 22o. X 90.

X 90. Part of a superficial colony.

VI. Agar plate, twenty-four hours at 22° X 60. (e) Superficial, (i) deep colonies.

VII. Gelatin plate, three days at 22°. Natural size. VIII. Microscopic preparation. Pure culture from agar plate. X 800.

IX. Potato culture, four days at 22°. Natural size. Compare also Plate 18, IX; Plate 26, v. X. Bacteria with flagella, usually one, more rarely two

X 1000. Stained according to Löffler.

or more.

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Bacterium putidum (Flügge). Lehm. and Neum. Bacterium fluorescens putidum Flügge. (Bacterium

fluorescens non-liquefaciens Autor.) I. Gelatin stab culture, three days at 22o.

II. Gelatin plate, twenty-four hours at 22° X 90. Superficial colony. Compare Plate 14, viii; Plate 19, III.

III. Gelatin plate, twenty-four hours at 22o. X 90. Deep colony.

IV. Gelatin plate, four days at 22°. Natural size. Appearance of colonies upon a dark background.

V. Potato culture, four days at 22°. Natural size. Compare also Plate 18, ix.

VI. Microscopic preparation. Pure culture from gelatin plate. X 800. Upon agar, threads are usually produced.

VII. Agar plate, eight days at 22o. Natural size. Appearance of the colonies upon a white background.

VIII. Agar plate, three days at 22°. X 60. (e) Superficial, (i) deep colonies.

IX. Bacteria with one, more rarely two flagella. X x 1000. Stained according to Löffler.

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