﻿108 
  PRIMEVAL 
  MAN. 
  

  

  have 
  every 
  possible 
  variety 
  of 
  tint 
  from 
  the 
  

   fairest 
  to 
  the 
  blackest 
  races, 
  so 
  that 
  the 
  one 
  

   extreme 
  passes 
  into 
  the 
  other 
  by 
  small 
  and 
  

   insensible 
  gradations. 
  As 
  regards 
  structure, 
  

   the 
  differences 
  between 
  different 
  varieties 
  

   of 
  Man 
  are 
  comparatively 
  trifling, 
  and 
  it 
  

   may 
  safely 
  be 
  affirmed 
  that 
  all 
  the 
  efforts 
  

   of 
  anatomists 
  and 
  physiologists 
  who 
  have 
  

   been 
  most 
  determined 
  to 
  magnify 
  every 
  

   point 
  of 
  variation, 
  have 
  utterly 
  failed 
  to 
  

   render 
  it 
  impossible 
  or 
  improbable 
  that 
  all 
  

   men 
  have 
  had 
  a 
  common 
  ancestor. 
  But 
  in 
  

   exact 
  proportion 
  as 
  we 
  hold 
  to 
  this 
  conclu- 
  

   sion 
  as 
  the 
  only 
  satisfactory 
  explanation 
  of 
  

   the 
  Unity 
  of 
  Man, 
  must 
  we 
  be 
  prepared 
  

   to 
  accept 
  the 
  high 
  probability, 
  if 
  not 
  the 
  cer- 
  

   tainty, 
  of 
  the 
  very 
  great 
  antiquity 
  of 
  the 
  Race. 
  

  

  