Spirochaeta pallida, 27
  average life of, on objects outside body, 113
  destruction of, in body, 39
  discovery of, 14, 22
  distribution of, in internal organs, 39
  effect of antiseptics on, 27
    of drying on, 27
    of salvarsan on, 74
  growth of, 27
  in brain, in general paralysis of insane, 48
  in hereditary syphilitic children, 99
  in late syphilis, 45
  in lymph-glands, 34
  in secondary syphilitic eruptions, 38
  in spinal cord, in locomotor ataxia, 49
  invasion of body by, in secondary stage, 35
  low vitality of, 27
  mode of entry into body, 28
  sensitizing of body to, 39
  strains or type of, 40
  variations in behavior of, in different persons, 40

Spleen, Spirochaeta pallida in, 39

Stage of syphilis, relation of, to curability, 82
  secondary, of syphilis, 35. See also secondary stage; secondary
  syphilis; contagiousness; transmission; and Spirochaeta pallida

Stage, tertiary, of syphilis, 45. See also syphilis, late

State, encouragement of early marriage by, 159
  provision of, for recognition and treatment of syphilis, 168

Stigma attaching to syphilis, harm done by, 143
  of syphilis, effect of, on venereal hospitals, 167

Still birth, relation of syphilis to, 96

Still’s statistics on death from hereditary syphilis, 98

Stomach in locomotor ataxia, 49

Sweat-glands, absence of Spirochaeta pallida in, 39

Sydenham Royal Commission, 164
  views on reporting of venereal disease, 179

Symptomatic cure in late syphilis, 87

Symptoms, absence of, in syphilis, 23
  constitutional, of secondary syphilis, 36

Syphilis, absence of immunity in, 139
  accidental, in physicians and nurses, 116
  acquired, in children, 95
    in marriage, 119
  action of mercury in, 63
    of salvarsan in, 74
  active, relation of, to miscarriages and abortion, 96
  adequate dispensary service for treating, 171
  ageing effect of, in child, 99
  and civil population, 183
  and engagements to marry, 129

Syphilis and marriage, 125
  and mental disease, 50
  and prostitution, 18, 133
  and public prejudice, 141
  and sexual problems, 18
  and war, 183
  as cause of death in children, 98
    of miscarriages and abortion in women, 95
  as public health problem, 18
  as social problem, 15
  blood test for, 54
  broader outlook concerning, 146
  comparison of, with malaria, 62
  compulsory treatment of, 180
  concealed forms of, 23
  concealment of, by gonorrhea, 30
  confusion of, with gonorrhea, 13, 16, 31
  problem of, with various issues, 16, 17, 165
  congenital, 94. See also syphilis, non-hereditary
  constitutional symptoms of, 36
  contagiousness of, in secondary stage,