﻿720 
  Fluctuations 
  

  

  large 
  measure. 
  Moreover, 
  Knight 
  pointed 
  out 
  

   more 
  than 
  once 
  that 
  it 
  is 
  the 
  amount 
  of 
  nourish- 
  

   ment, 
  not 
  the 
  quality 
  of 
  the 
  various 
  factors, 
  that 
  

   exercises 
  the 
  determinative 
  influence. 
  Nourish- 
  

   ment 
  is 
  to 
  be 
  taken 
  in 
  the 
  widest 
  sense 
  of 
  the 
  

   word, 
  including 
  all 
  favorable 
  and 
  injurious 
  ele- 
  

   ments. 
  Light 
  and 
  temperature, 
  soil 
  and 
  space, 
  

   water 
  and 
  salts 
  are 
  equally 
  active, 
  and 
  it 
  is 
  the 
  

   harmonious 
  cooperation 
  of 
  them 
  all 
  that 
  rules 
  

   growth. 
  

  

  We 
  treated 
  this 
  important 
  question 
  at 
  some 
  

   length, 
  when 
  dealing 
  with 
  the 
  anomalies 
  of 
  the 
  

   opium-poppies, 
  consisting 
  of 
  the 
  conversion 
  of 
  

   stamens 
  into 
  supernumerary 
  pistils. 
  The 
  de- 
  

   pendency 
  upon 
  external 
  influences 
  which 
  this 
  

   change 
  exhibited 
  is 
  quite 
  the 
  same 
  as 
  that 
  shown 
  

   by 
  fluctuating 
  variability 
  at 
  large. 
  We 
  inquired 
  

   into 
  the 
  influence 
  of 
  good 
  and 
  bad 
  soil, 
  of 
  sun- 
  

   light 
  and 
  moisture 
  and 
  of 
  other 
  concurrent 
  fac- 
  

   tors. 
  Especial 
  emphasis 
  was 
  laid 
  upon 
  the 
  

   great 
  differences 
  to 
  which 
  the 
  various 
  individ- 
  

   uals 
  of 
  the 
  same 
  lot 
  may 
  be 
  exposed, 
  if 
  moisture 
  

   and 
  manure 
  differ 
  on 
  different 
  portions 
  of 
  the 
  

   same 
  bed 
  in 
  a 
  way 
  unavoidable 
  even 
  by 
  the 
  most 
  

   careful 
  preparation. 
  Some 
  seeds 
  germinate 
  on 
  

   moist 
  and 
  rich 
  spots, 
  while 
  their 
  neighbors 
  are 
  

   impeded 
  by 
  local 
  dryness, 
  or 
  by 
  distance 
  from 
  

   manure. 
  Some 
  come 
  to 
  light 
  on 
  a 
  sunny 
  day, 
  

   and 
  increase 
  their 
  first 
  leaves 
  rapidly, 
  while 
  on 
  

  

  