--------+-------+-------------+--------+---------------------------+------------ No. of | | Shape | | | Growth the Bac-| Where | and |Motility| Growth on Gelatin | on terium | Found | Arrangement | | | Agar-agar --------+-------+-------------+--------+-----------------------------------+---- 1 |Dog |Small rods |Lively |In the gelatin stab-culture|A white |dung |of the size | |the bacteria show a good |surface | |of the _Bac. | |growth in the depth. At the|layer is | |prodigiosus_.| |surface it forms a small |formed on | | | |white button. The gelatin |inclined | | | |is not liquefied. The col- |stiffened | | | |onies which have reached |agar-agar. | | | |the surface of the gelatin-| | | | |plate spread in the shape | | | | |of a leaf, with a mother- | | | | |of-pearl-like gloss. | | | | | | 2 | Do. |Small rods of| Do. |Stab-culture: The germs |A yellowish- | |the size of | |develop along the entire |white layer | |the hay | |track. Small arms extend |is formed | |bacillus. | |sideways into the gelatin. |along the | | | |A white layer is formed on |inoculating | | | |the surface. The gelatin is|stab. | | | |slowly liquefied. | | | | | | | | | |Gelatin-plate: When they | | | | |reach the surface, the col-| | | | |onies spread out in the | | | | |shape of a leaf and then | | | | |are slightly fluorescent. | | | | | | 3 | Do. |Very small | Do. |Stab-culture: Very good |A white | |rods rounded | |growth in depth. Very many |deposit is | |at the | |arms extend laterally from |formed on | |ends. | |the track of the stab into |inclined | | | |the gelatin. Small knots |agar-agar. | | | |are formed at the ends of | | | | |the arms. A thin white | | | | |coating is formed on the |