rresponsible 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

Scandinavian countries, compulsory treatment of venereal disease in, 180
free treatment of venereal diseases in, 169
provision for reporting venereal disease in, 179

Scars following gummatous changes, 46

Schaudinn and Hoffmann, 14, 22

School-hospitals for hereditary syphilis, 108

Secondary stage of syph