The first of the following cases reported was one in which the symptoms of cystitis were most severe and resembled tuberculous cystitis. The bacteriologic examination and animal inoculation showed no tubercle bacilli, but did show the pseudodiphtheria bacillus in pure culture. Text-books on genito-urinary subjects do no more than mention the pseudodiphtheria bacillus as "an organism occasionally found in the urinary tract" and attach no importance to it pathologically. In reviewing the literature I find a case reported by Rosenow, in which the pseudodiphtheria organism was proved to be the etiologic factor. This organism is frequently associated with the gonococcus in chronic gonorrheas. I offer these facts as a reason for presenting the following case histories, summary of literature and report on the bacteriologic examination of eighty specimens of apparently normal urine.
—In January, 1911, a man, aged 21, unmarried, a farm hand, consulted me for dysuria and