But  that  phenomenon  is  in  no  way  comparable  to
the  corresponding  reinforcement  of  those  same  resi-
dues in  the  governing  class;  for  the  governing  class,
being  composed,  as  it  is,  of  a  much  smaller  number
of  individuals,  changes  considerably  in  character
from  the  addition  to  it  or  withdrawal  from  it  of  rela-
tively small  numbers  of  individuals;  whereas  shifts
of  identical  numbers  produce  but  slight  effects  in
the  enormously  greater  total  of  the  subject  class.
