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Bacterium fluorescens. Lehm. and Neum.' (Bacillus

fluorescens liquefaciens. Flügge.)
I. Gelatin stab culture, two days at 22°.
II. Gelatin stab culture, eight days at 22o.
III. Agar streak culture, three days at 22°.
IV. Agar stab culture, four days at 22°.
V. Gelatin plate, two days at 22° 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 22o. Natural size. VIII. Microscopic preparation. Pure culture from agar plate. X 800.

IX. Potato culture, four days at 22o. 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.

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 22o. 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 22o. Natural size. Appearance of colonies upon a dark background.

V. Potato culture, four days at 22o. 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 22°. 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. Х 1000. Stained according to Löffler.

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