To the Editor.— Lancaster wrote concerning the treatment of gonorrhea ( 217 :1106, 1971). One thing is certain; penicillin did not stop the epidemic of gonorrhea. It is true that reported cases of gonorrhea dropped between 1950 and 1957, but since 1957 there has been a steady increase in reported cases from 129 per 100,000 to 285 per 100,000 in 1970. I emphasize "reported" because only about one fourth of cases are reported. Apparently, Lancaster has a different type of clientele than the one we have in our clinic. We cannot get 80% of our patients back in one week even when we pay them $10 for the return visit, which we do on some research projects; it would be impossible to get any of them back for ten consecutive days. Aqueous penicillin G procaine, 2.4 million units in men and 4.8 million units in women, will get better than a