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  seen 
  it 
  in 
  Labrador 
  and 
  in 
  Ontario 
  nearly 
  to 
  Hudson's 
  Bay. 
  On 
  

   the 
  Pacific 
  coast 
  it 
  is 
  said 
  to 
  reach 
  a 
  height 
  of 
  thirty 
  feet. 
  Although 
  

   spreading 
  bj'- 
  stoloniferous 
  roots 
  like 
  the 
  common 
  American 
  hazel, 
  

   these 
  roots 
  are 
  shorter, 
  and 
  it 
  does 
  not 
  extend 
  rapidly 
  enough 
  to 
  

   dominate 
  the 
  situation 
  when 
  growing 
  in 
  competition 
  with 
  the 
  com- 
  

   mon 
  hazel. 
  

  

  The 
  nuts, 
  while 
  very 
  good, 
  and 
  sometimes 
  of 
  large 
  size 
  with 
  com- 
  

   paratively 
  thin 
  shell, 
  lack 
  quality, 
  a 
  very 
  important 
  element 
  in 
  any 
  

   nut. 
  It 
  is 
  probable 
  that 
  this 
  tailed 
  hazel 
  will 
  be 
  valuable 
  for 
  add- 
  

   ing 
  hardiness 
  to 
  hybrids 
  with 
  the 
  European 
  and 
  Asiatic 
  hazels, 
  

   when 
  the 
  time 
  comes 
  for 
  horticulturists 
  of 
  Canada 
  to 
  make 
  for- 
  

   tunes 
  from 
  their 
  hazel 
  orchards. 
  

  

  In 
  Europe 
  and 
  Asia 
  and 
  in 
  the 
  northern 
  parts 
  of 
  Africa 
  several 
  

   species 
  of 
  hazels 
  are 
  extremely 
  important 
  commercially, 
  sometimes 
  

   furnishing 
  the 
  chief 
  source 
  of 
  income 
  for 
  large 
  districts, 
  very 
  much 
  

   as 
  wheat 
  or 
  corn 
  make 
  special 
  crops 
  over 
  large 
  areas 
  in 
  this 
  country. 
  

   These 
  foreign 
  hazels 
  have 
  not 
  been 
  raised 
  successfully 
  in 
  our 
  

   country, 
  excepting 
  very 
  recently 
  on 
  the 
  northwest 
  coast. 
  The 
  

   reason 
  for 
  failure 
  depends 
  almost 
  wholly 
  upon 
  the 
  presence 
  of 
  a 
  

   blight, 
  Cryptosporella 
  anomala, 
  which 
  belongs 
  to 
  our 
  native 
  hazels. 
  

   In 
  the 
  course 
  of 
  evolution, 
  host 
  and 
  parasite 
  have 
  come 
  to 
  be 
  peers 
  

   of 
  each 
  other, 
  and 
  consequently 
  this 
  blight 
  does 
  not 
  menace 
  our 
  

   native 
  hazels 
  very 
  seriously. 
  Introduced 
  species, 
  with 
  the 
  excep- 
  

   tion, 
  perhaps, 
  of 
  the 
  Byzantine 
  hazel, 
  appear 
  to 
  carry 
  a 
  protoplasm 
  

   which 
  has 
  not 
  learned 
  to 
  resist 
  the 
  attacks 
  of 
  the 
  blight. 
  All 
  organic 
  

   warfare 
  is 
  fundamentally 
  enzymic 
  in 
  its 
  nature, 
  and 
  it 
  is 
  possible 
  

   that 
  through 
  process 
  of 
  natural 
  selection 
  some 
  of 
  the 
  foreign 
  hazels 
  

   would 
  eventually 
  become 
  securely 
  established 
  in 
  this 
  country, 
  with- 
  

   out 
  aid 
  from 
  the 
  nurseryman. 
  

  

  As 
  a 
  matter 
  of 
  fact, 
  the 
  hazel 
  blight 
  is 
  very 
  easily 
  managed. 
  Not 
  

   knowing 
  this 
  at 
  first, 
  I 
  allowed 
  almost 
  all 
  of 
  my 
  exotic 
  hazels 
  to 
  

   become 
  destroyed, 
  and 
  a 
  number 
  of 
  nurserymen 
  told 
  me 
  of 
  having 
  

   given 
  up 
  the 
  problem 
  as 
  hopeless. 
  Recently 
  I 
  have 
  learned 
  of 
  the 
  

   ease 
  with 
  which 
  the 
  disease 
  may 
  be 
  controlled, 
  and 
  now 
  feel 
  very 
  

   comfortable 
  in 
  its 
  presence. 
  

  

  The 
  bhght 
  is 
  of 
  slow 
  development 
  and 
  chooses 
  the 
  larger 
  hazel 
  

   stems 
  for 
  its 
  battleground. 
  All 
  that 
  one 
  notices 
  at 
  first 
  is 
  a 
  depres- 
  

   sion 
  of 
  the 
  bark 
  extending 
  in 
  the 
  long 
  axis 
  of 
  a 
  large 
  branch. 
  If 
  

   one 
  observes 
  more 
  closely, 
  he 
  will 
  find 
  spore-bearing 
  pustules 
  occur- 
  

   ring 
  as 
  little 
  round 
  elevations 
  upon 
  the 
  depressed 
  part 
  of 
  the 
  bark. 
  

   The 
  blight 
  proceeds 
  slowly, 
  and 
  I 
  pass 
  about 
  for 
  examination 
  speci- 
  

   mens 
  from 
  two 
  hazel 
  limbs. 
  In 
  the 
  smaller 
  one 
  the 
  blight 
  has 
  been 
  

  

  