Diagnosis of trichomonad infestation by examination of stained films.

* Received for publication January 13, 1959. Another advantage is that one is not dependent on a single feature, the waving of flagella-the animal may not be in a waving mood that day-but on at least three features which can be demonstrated by the use of a simple stain requiring no particular skill. On this point I would urge that, whatever the suspicion, every film of suspected urethral, vaginal, or cervical discharge should be stained, not only by Gram's method but by a single stain so that its cytology besides its bacteriology can be studied. There are many methods of staining Trichomonas vaginalis and the more elaborate ones show up the