62 MOTILITY. 



actually demonstrated. By a special method of staining 

 Loffler 1 was the first to render visible these hair-like 

 appendages. His method, as well the several modi- 

 fications that have been made of it, depends for success 

 upon the use of mordants, through the agency of which 

 the stains employed are caused to adhere with increased 

 tenacity to the objects under treatment. 



iLoffler's method of staining will be found in the chapter devoted 

 to this part of the technique. 



