S8 



BACTERIA 



loosely attached, forming chains. These are very common 

 in some species of Micrococcus (See Fig. 15). 



Bacillus when undergoing fission behaves something like 

 Heteromita : the mother-cell divides transversely across the 

 middle, and the two halves gradually wriggle away from one 

 another, but remain connected for a time by a very fine thread 



B 



(FfomKlei^f' ^''^'''°- "' '^>''''^^«'« ^^««^- c, Spinllu,n volutans. 



Of protoplasm which extends between their adjacent ends 

 This IS drawn out by the gradual separation of the two cell, 

 until It attains twice the length of a flagellum, when it snaps 

 m the middle, thus providing each daughter-cell with a new 

 flagellum. Bacillus may, however, divide while in the 

 resting condition and, under certain circumstances the 

 process is repeated again and again, and the daughter-cells 



