28 



SPECIAL CHARACTERS 



wavy hairs. These are called flagella (sing., flagel- 

 lum). They are arranged either at one end, both 



FIG. 7 



Bacilli showing multiple flagella. (Park.) 

 FIG. 8 



Unstained spores in slightly distended bacilli. (The spores are the light 

 oval spaces in the heavily stained bacilli.) (Park.) 



ends, or around the whole surface of the cell. They 

 propel the bacterium by a quick waving or lashing 

 motion. 



