Contagiousness of moist sores in syphilis, 27, 38, 110 of secondary relapses in syphilis, 42 syphilitic sores, 38 of syphilis, 109. _See also infectiousness, infection, and transmission_ and medical examination of prostitutes, 135 control of, by salvarsan, 73, 74, 122 detection of, by examination of patient, 123 disappearance of, in late syphilis, 110 duration of, in late syphilis, 112 under treatment, 123 effect of incomplete cure on, 83 of local irritation on, 43 of mercury on, 64 of moisture on, 27, 38, 110 of time on, 111 of tobacco on, 138 estimate of risk for wife, 125 factors tending to increase, 112 five-year rule in relation to, 124 hereditary, 100, 105 ignorance of, in women, 135 impracticability of quarantine in control of, 121 in wet nurses, 101 inability of mercury to control, 123 obstacles to control by treatment, 123 Continence as personal prophylaxis, 161 economic forces opposing, 157 Copenhagen, dispensaries for treatment in, 171 Cost, economic, of mental disease due to syphilis, 51 of living, effect of, on marriage and sexual life, 158 of treatment, effect of, 84, 149 Cups, drinking, transmission of syphilis by, 113 Curability of syphilis, critical estimate of, 90 Cure, importance of, for the wife, 128 incomplete or symptomatic, danger of, 82 of early syphilis, abortive, 27, 34, 86, 127 of hereditary syphilis, 107 of syphilis, 124, 126, 129. _See also five-year rule_ abortive, salvarsan in, 73, 79, 89 complete, responsibility of the physician in regard to, 84 effect of cost on, 84, 149 stage of disease on, 85 importance of, 90 in early stage, 27, 86 in primary stage, 85. _See also cure of syphilis, abortive_ in secondary stage, 86, 88 methods of determining, 90 obstacles to, 80 radical or complete, 80 Wassermann test in, 58 symptomatic, in late syphilis, 87 time required for, 87 DARK-field examination, use of, in recognizing contagious recurrences, 111 germ of syphilis in, 22 importance of using, 22 use of, in recognizing early syphilis, 33 Deafness and loss of speech due to hereditary syphilis, 104 Deaths due to hereditary syphilis, 98, 99 due to late syphilis, 48 Denmark, free treatment of syphilis in, 169 Disgrace, syphilis and, 142, 144 Disinfection of hands, dishes, etc., by washing and disinfectants, 114 Dispensaries for syphilis in large cities, 170 Drinking of alcoholic liquors, effect of, in syphilis, 137 "Drops," 69 Drug stores and drug clerks, evil influence of, 175 prescribing, suppression of, 168, 174 Drying, effect on germ of syphilis, 27 Dumbness (loss of speech) in hereditary syphilis, 104 Dyes, relation of, to salvarsan, 70 EARS, secondary recurrences affecting, 43 Ears, trouble in, in hereditary syphilis, 104 Eating utensils, transmission of syphilis by, 113, 115