﻿Origin 
  of 
  Wild 
  Species 
  601 
  

  

  all 
  the 
  seeds. 
  And 
  as 
  nature 
  affords 
  such 
  op- 
  

   portunities 
  only 
  at 
  rare 
  intervals, 
  we 
  should 
  

   make 
  use 
  of 
  artificial 
  methods. 
  Large 
  quan- 
  

   tities 
  of 
  seed 
  should 
  be 
  gathered 
  from 
  wild 
  

   plants 
  and 
  sowed 
  under 
  very 
  favorable 
  condi- 
  

   tions, 
  giving 
  all 
  the 
  nourishment 
  and 
  space 
  re- 
  

   quired 
  to 
  the 
  young 
  seedlings. 
  It 
  is 
  recom- 
  

   mended 
  that 
  they 
  be 
  sown 
  under 
  glass, 
  either 
  in 
  

   a 
  glass-house 
  or 
  protected 
  against 
  cold 
  and 
  rain 
  

   by 
  glass-frames. 
  The 
  same 
  lot 
  of 
  seed 
  will 
  be 
  

   seen 
  to 
  yield 
  twice 
  or 
  thrice 
  as 
  many 
  seedlings 
  

   if 
  thus 
  protected, 
  compared 
  with 
  what 
  it 
  would 
  

   have 
  produced 
  when 
  sown 
  in 
  the 
  field 
  or 
  in 
  the 
  

   garden. 
  I 
  have 
  nearly 
  wholly 
  given 
  up 
  sowing 
  

   seeds 
  in 
  my 
  garden, 
  as 
  circumstances 
  can 
  be 
  

   controlled 
  and 
  determined 
  with 
  greater 
  ex- 
  

   actitude 
  when 
  the 
  sowing 
  is 
  done 
  in 
  a 
  glass- 
  

   house. 
  

  

  The 
  best 
  proof 
  perhaps, 
  of 
  the 
  unfavorable 
  

   influence 
  of 
  external 
  conditions 
  for 
  slightly 
  de- 
  

   teriorated 
  deviations 
  is 
  afforded 
  by 
  variegated 
  

   leaves. 
  Many 
  beautiful 
  varieties 
  are 
  seen 
  in 
  

   our 
  gardens 
  and 
  parks, 
  and 
  even 
  corn 
  has 
  a 
  

   variety 
  with 
  striped 
  leaves. 
  They 
  are 
  easily 
  re- 
  

   produced, 
  both 
  by 
  buds 
  and 
  by 
  seeds, 
  and 
  they 
  

   are 
  the 
  most 
  ordinarv 
  of 
  all 
  varietal 
  deviations. 
  

  

  V 
  

  

  They 
  may 
  be 
  expected 
  to 
  occur 
  wild 
  also. 
  But 
  

   no 
  real 
  variegated 
  species, 
  nor 
  even 
  good 
  

   varieties 
  with 
  this 
  attribute 
  occurs 
  in 
  nature. 
  

  

  