80 



BACTERIOLOGICAL EXAMINATION 



Collection of Sputum. Sputum to be examined for 

 the tubercle bacillus should be received in a thoroughly 



FIG. 22. Showing the method of taking a culture from the pharynx. 

 (Morrow.) 



FIG. 23. Widc-rnouthed bottle for collecting sputum. 



cleansed and dried wide-mouthed bottle. This is 

 given to the patient that he may expectorate directly 

 into it. When the specimen has been collected by the 



