Prophylaxis, personal, of syphilis, continence in, 161 general instruction in, 169 in army and navy, 162 physician proper person to administer, 163 unsatisfactory features of, 162 Prostitutes in Baltimore, gonorrhea in, 134 medical examination of, 135 syphilis in, 134 Prostitution, abolition or repression of, 156, 157 and syphilis, 18, 133 clandestine, risks of, 136 effects of liquor traffic on, 184 regulation of, 156 Psoriasis, confusion of, with syphilitic eruptions, 37 Public Health, syphilis as problem of, 18 Service, United States, estimates of prevalence of syphilis, 24 opinion about syphilis, 141 sentiment and reporting of syphilis to health officers, 178 Publicity, campaign for, 176 QUACKS, suppression of, 168, 174 treatment of syphilitics by, 140 Quarantine and freak legislation, 167 compulsory, for irresponsible syphilitics, 153 limitations of, in controlling spread of syphilis, 121 temporary, for syphilis, in hospitals, 172 Quiescent period following entry of germ, 28 RAILROAD MEN, locomotor ataxia and general paralysis in, 50 Rash. _See eruption_ Recurrences, contagiousness of, 111 estimated frequency of, in secondary syphilis, 125 in secondary stage, 42, 43 Re-infection with syphilis, 139 Relapses, contagious, in syphilis, 42 frequency of, in secondary stage, 125 in nervous system, 43 Reporting of syphilis, attitude of various countries on, 179 to health officers, 178 Resistance of body to syphilis, 29, 107, 112 Rest, need of, in syphilis, 137 Restaurants, risk of transmitting syphilis under conditions found in, 115 Rheumatism, symptoms resembling, in secondary syphilis, 36 Ricord, founder of modern syphilology, 13 Rub, mercurial. _See inunction_ Rule, five-year, 124, 126, 129 for marriage of syphilitics. _See marriage_ for personal hygiene of syphilitics, 136 governing miscarriage and abortion due to syphilis, 96 sexual relations in syphilitics, 138 variations on, in hereditary syphilis, 96 SALIVA, syphilitic germs in, 38 Salvarsan, accidents due to, 78 action of, in syphilis, 73 and abortive cure, 73, 79, 89 and mercury, comparative value of, 68, 89 in pregnancy, 97 animal tests on, 71 arsenic in, 71 as a social asset, 78 cheap, vital importance of, 172 combination of arsenic and dye, 70, 71 correct administration of, 77 discovery of, 70 effect of first dose, 78 of insufficient treatment with, 76 on mucous patches, 74 expense of treatment with, 76 importance of, in controlling contagiousness of syphilis, 73, 74, 122 in treatment, 89 in control of syphilis in prostitutes, 157 methods of giving, 75 misconceptions regarding cure by single dose, 72 need for governmental control, 77 patent rights on, 172 preliminary tests of, on man, 71, 72 price of, 172 repeated doses, 76 use of, does not justify relaxation of rules for marriage, 127 value of, in syphilis, 73