In a recent statistical survey of 2,756 cases of non-gonococcal urethritis examined at the Urological Clinic of the Faculty of Medicine in Paris (Hopital Cochin), inclusion bodies were found in 84, i.e., an average of about 3 per cent. In patients suffering from the urethro-conjunctivo-synovial syndrome, we have found, as previously reported by Harkness (1945), inclusion bodies in scrapings fro...