414 BACTERIOLOGY. 



segment of the long thread, and gives to the thread the 

 appearance of a string of glistening beads. (Fig. 89.) 



Fig. 88. 



'/ 





( V 



>\^^ 



\v 



b 



Bacillus anthracis. Plaited and twisted threads seen in fresh growing 

 cultures. X about 400 diameters. 



In this stage they remain but a short time. The chains 

 of spores, which are held together by the remains of the 

 cells in which they formed, become broken up, and 

 eventually nothing but free oval spores, and here and 

 there the remains of mature bacilli which have under- 

 gone degenerative changes, can be found. In this con- 

 dition the spores capable of resisting deleterious influ- 



FiQ. 89. 



Threads of bacillus anthracis containing spores. X about 1200 diameters. 



ences remain, and, unless their surroundings are altered, 

 have been seen to continue in this living, though inac- 



