﻿EVIDENCE 
  ON" 
  MAN'S 
  EVOLUTION 
  HRDLI^KA 
  431 
  

  

  most 
  often 
  into 
  effect. 
  This 
  danger 
  can 
  be 
  counteracted 
  by 
  the 
  better 
  

   bringing 
  up 
  of 
  the 
  youth 
  ; 
  by 
  rational 
  regulations 
  as 
  to 
  the 
  defectives 
  ; 
  

   and 
  by 
  such 
  measures 
  as 
  the 
  furnishing, 
  together 
  with 
  and 
  as 
  a 
  part 
  

   of 
  the 
  marriage 
  license, 
  to 
  every 
  marrying 
  couple 
  a 
  treatise 
  of 
  a 
  

   high 
  order 
  on 
  health, 
  eugenics, 
  and 
  happiness 
  in 
  the 
  family. 
  

  

  Thus 
  it 
  is 
  seen 
  that 
  on 
  one 
  hand 
  man 
  is 
  supplementing 
  nature 
  and 
  

   helping 
  himself 
  on 
  his 
  way, 
  making 
  errors 
  only 
  through 
  ignorance 
  

   or 
  abnormality, 
  and 
  with 
  an 
  advance 
  of 
  dependable 
  knowledge, 
  is 
  

   becoming 
  more 
  and 
  more 
  a 
  factor 
  in 
  his 
  own 
  evolution. 
  On 
  the 
  

   other 
  hand, 
  there 
  are 
  still 
  many 
  agencies 
  that 
  are 
  retarding 
  and 
  may 
  

   at 
  times 
  even 
  threaten 
  his 
  progress. 
  These 
  may 
  gradually 
  be 
  neu- 
  

   tralized 
  or 
  done 
  away 
  \vith. 
  Largely 
  the 
  question 
  is 
  again 
  one 
  of 
  

   knowledge, 
  wdiich, 
  translated 
  into 
  practice, 
  means 
  more 
  research, 
  in- 
  

   struction, 
  real 
  enlightenment. 
  

  

  As 
  true 
  knowledge 
  will 
  advance, 
  men 
  may 
  safely 
  be 
  expected 
  to 
  

   proceed 
  gradually 
  more 
  and 
  more 
  toward 
  rational 
  and 
  scientific 
  self- 
  

   regulation 
  and 
  self 
  -direction 
  ; 
  for 
  that 
  will, 
  according 
  to 
  indications, 
  

   be 
  the 
  road 
  toward 
  happiness 
  and 
  progress 
  in 
  the 
  right 
  line. 
  

  

  CONCLUDING 
  REMARKS 
  

  

  That, 
  briefly, 
  is 
  the 
  scope 
  of 
  the 
  scientific 
  evidence 
  of 
  man's 
  evolu- 
  

   tion, 
  and 
  of 
  its 
  indications 
  for 
  the 
  future. 
  A 
  true 
  appreciation 
  of 
  the 
  

   subject 
  carries 
  with 
  it, 
  to 
  -the 
  scientist, 
  a 
  sense 
  of 
  deep 
  gratification. 
  

   To 
  be 
  the 
  chief 
  product 
  of 
  a 
  great 
  life-tide 
  of 
  millions 
  of 
  years' 
  

   duration, 
  seems 
  to 
  man 
  an 
  achievement 
  of 
  the 
  highest 
  order, 
  and 
  

   furnishes 
  at 
  the 
  same 
  time 
  a 
  substantiation 
  of 
  his 
  supreme 
  position 
  

   in 
  the 
  organic 
  w^orld. 
  

  

  If 
  ages 
  have 
  labored 
  and 
  built 
  to 
  produce 
  Man, 
  an 
  appreciation 
  of 
  

   the 
  fact 
  is 
  bound 
  to 
  be 
  full 
  of 
  proud 
  consciousness 
  and 
  deep 
  respon- 
  

   sibility. 
  With 
  the 
  knowledge 
  of 
  his 
  past, 
  furthermore, 
  and 
  with 
  that 
  

   of 
  his 
  present, 
  man 
  can 
  well 
  feel 
  that 
  ages 
  of 
  further 
  development 
  

   are 
  still 
  ahead 
  of 
  him, 
  so 
  that 
  he 
  may 
  eventually 
  reach 
  the 
  highest 
  

   legitimate 
  aspirations. 
  

  

  SOME 
  REFERENCES 
  TO 
  LITERATURE 
  

  

  (A 
  collective 
  work.) 
  The 
  Evolution 
  of 
  Man. 
  8°. 
  New 
  Haven 
  (Yale 
  Univ. 
  

   Press), 
  1922. 
  

  

  (A 
  collective 
  work.) 
  Evolution 
  in 
  the 
  Light 
  of 
  Modern 
  Knowledge. 
  8". 
  

   London, 
  1925. 
  

  

  (A 
  collective 
  work). 
  Evolution. 
  8". 
  New 
  York 
  (Macmillan 
  Co.), 
  1927. 
  

  

  BouLE, 
  M. 
  Fossil 
  Men. 
  8°. 
  Edinburgh, 
  1923. 
  

  

  BuBKiTT, 
  M. 
  C. 
  Prehistory. 
  8°. 
  Cambridge, 
  1921. 
  

  

  Holmes, 
  S. 
  J. 
  General 
  Biology. 
  8". 
  New 
  York, 
  1926. 
  

  

  HrdliCka, 
  a. 
  The 
  most 
  ancient 
  skeletal 
  remains 
  of 
  man. 
  Publ. 
  2300, 
  Smith- 
  

   sonian 
  Inst., 
  2d 
  ed., 
  Washington, 
  191G. 
  

  

  The 
  "Old 
  Americans." 
  8°. 
  Baltimore 
  (Williams 
  & 
  Wilkins), 
  1925. 
  

  

  