6 PRACTICAL BAOTEEIOLOGY. 



One-half to one minute will suffice for staining, as 

 torulae stain rapidly as a rule. 



4. Prepare in like manner a cover glass film of the 

 broth culture of Bacillus proteus mirabilis. Stain with 

 carbol-fuchsin, onb-quarter to one-half minute, wash, 

 dry and mount in Canada balsam. 



