The Fundamentals of Bacteriology

by Charles Bradfield Morrey

Fig. 154.—Beaded slope culture. × ½.

Further, in the gelatin puncture the liquefaction which occurs is frequently characteristic. It may be crateriform ([Fig. 148]), a shallow saucer at the surface; or funnel-shaped ([Fig. 149]); or it may be of uniform width all along the puncture, i.e., saccate ([Fig. 150]); or it may be stratiform, ([Fig. 151]), i.e., the liquefaction extends to the sides of the tube and proceeds uniformly downward.

Fig. 155

Fig. 156

Fig. 157

Fig. 158