PLATE 27.

Bacterium syncyaneum (Ehrenb.). Lehm. and Neum. (Bac. cyanogenes Flügge; Blue Milk.)

I-III. Gelatin stab cultures, from six to ten days at 22°. There occur still other shades of color.

IV. Agar stab culture, ten days at 37°.

V. Bouillon culture, four days at 37°.

VI. Milk culture, three days at 37°. Inoculated upon unsterilized milk.

VII. Microscopic preparation. Pure culture from agar plate. × 800.

VIII. Microscopic preparation. Pure culture. Flagella staining with Löffler's mordant.

800.

IX. Bacteria with flagella, one or more at one pole. X 1000. Stained according to Löffler.

IX.