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IX.

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ith 1si ti Reichholt Ancien

Vibrio danubicus Heider, Vibrio berolinensis Rubner,

Vibrio aquatilis Günther. I. Vibrio danubicus: Gelatin stab culture, three days at 22°.

II. Vibrio aquatilis: Gelatin stab culture, three days at

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22°.

III. Vibrio danubicus: Gelatin plate, three days at 22o. X 60. To the right superficial, to the left deep colony.

IV. Vibrio danubicus: Microscopic preparation. Pure culture on agar, twenty-four hours. Stained with fuchsin. X 800.

V. Vibrio berolinensis: Gelatin plate, three days at 22°. X 60. To the right superficial, to the left deep colony.

VI. Vibrio berolinensis: Microscopic preparation. Pure culture from agar, twenty-four hours. x 800. Stained with fuchsin.

VII. Vibrio aquatilis: Gelatin plate, three days at 22o. x X 60. Deep colonies, swarming outward from one point forming secondary ones.

VIII. Vibrio aquatilis: Microscopic preparation. Pure culture on agar, twenty-four hours at 220 x 800. Stained with fuchsin.

IX. Vibrio aquatilis: Gelatin plate, three days at 22o. X 60. To the right superficial, to the left deep colony.

PLATE 54.

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Vibrio albensis. Lehm. and Neum. (Phosphorescent

Elbe Vibrio.)
I. Gelatin stab culture, twenty-four hours at 22°.
II. Gelatin stab culture, four days at 22o.
III. Gelatin stab culture, ten days at 22o.

IV. Indol reaction after ten days. Bouillon culture with dilute sulphuric acid, warmed.

V. Gelatin plate, three days at 22o. X 60. Superficial colony.

VI. Gelatin plate, three days at 22o. x 60. Deep colonies.

VII. Gelatin plate, thirty-six hours at 22°. Natural size.

VIII. Microscopic preparation. Pure culture from agar, forty-eight hours. Stained with fuchsin.

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