i86 



BACTERIOLOGICAL METHODS 



from the organs of chief distribution of the parasite. From 

 these samples cut small flat pieces and compress between two 



FIG. 63. Colony of Actinomyces bovis from cow. (Williams.) 



glass slips and examine under the low power of the compound 

 microscope. As a clearing agent a solution of acetic acid (1-30) 



FIG. 64. Encysted Trichina spiralis (Trichinella spiralis} in muscle tissue. 



(Stilt, after Ziegler.} 



may be used. To clear sections of salted hams or other meat, 

 use diluted potassium or sodium hydrate. Examining minced 



