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  Mr. 
  Littlepage: 
  II 
  made 
  beautiful 
  growth 
  from 
  the 
  wood 
  stand- 
  

   point. 
  

  

  Mr. 
  Roper: 
  Mr. 
  Reed's 
  point 
  was 
  that 
  it 
  would 
  do 
  that 
  till 
  it 
  got 
  

   by 
  the 
  period 
  of 
  good 
  nutrition 
  from 
  the 
  root. 
  Professor 
  Craig 
  says 
  

   the 
  elaboration 
  of 
  food 
  from 
  the 
  pecan 
  top 
  more 
  than 
  overcomes 
  the 
  

   deficiency. 
  

  

  Professor 
  Lake 
  : 
  I 
  would 
  like 
  to 
  question 
  Mr. 
  Littlepage 
  's 
  physio- 
  

   logical 
  ground 
  for 
  the 
  lack 
  of 
  proper 
  fusion 
  of 
  liquids 
  between 
  the 
  

   pecan 
  and 
  the 
  other 
  hickories. 
  I 
  believe 
  it 
  is 
  not 
  authenticated 
  that 
  

   the 
  water 
  supplies 
  from 
  the 
  earth 
  would 
  not 
  distil 
  as 
  fast 
  in 
  the 
  close 
  

   grained 
  hickories 
  as 
  in 
  the 
  more 
  open 
  grained 
  pecan. 
  At 
  least, 
  the 
  very 
  

   close 
  grained, 
  firm 
  woods 
  of 
  the 
  tropics 
  transmit 
  a 
  tremendous 
  amount 
  

   of 
  water, 
  much 
  in 
  excess 
  of 
  many 
  of 
  our 
  fine 
  grained 
  woods 
  of 
  the 
  North. 
  

   And 
  it 
  seems 
  to 
  me 
  I 
  wouldn't 
  like 
  to 
  have 
  this 
  Association 
  go 
  on 
  

   record 
  as 
  vouching 
  for 
  this 
  explanation 
  exactly. 
  It 
  seems 
  to 
  me 
  there 
  

   are 
  better 
  explanations. 
  Lack 
  of 
  fusion 
  is 
  not 
  due 
  to 
  the 
  amount 
  of 
  

   water 
  that 
  is 
  carried 
  up, 
  but 
  rather 
  to 
  the 
  fact 
  that 
  the 
  root 
  system 
  of 
  

   the 
  hickory 
  does 
  not 
  develop 
  fast 
  enough 
  to 
  collect 
  water 
  to 
  transmit. 
  

  

  Mr. 
  Littlepage: 
  I 
  am 
  very 
  glad 
  to 
  hear 
  Professor 
  Lake's 
  state- 
  

   ments. 
  My 
  suggestions 
  were 
  given 
  only 
  as 
  a 
  possible 
  theory 
  that 
  oc- 
  

   curred 
  to 
  me, 
  and 
  I 
  don't 
  vouch 
  for 
  their 
  accuracy. 
  There 
  must 
  be 
  

   some 
  explanation 
  to 
  controvert 
  the 
  general 
  rule 
  which 
  Professor 
  Craig 
  

   has 
  given 
  us. 
  

  

  Professor 
  Craig: 
  May 
  I 
  add 
  one 
  word? 
  When 
  a 
  stock 
  and 
  scion 
  

   unite, 
  the 
  union 
  is 
  really 
  a 
  mechanical 
  one. 
  It 
  is 
  a 
  union 
  of 
  cells, 
  and 
  

   in 
  that 
  respect 
  it 
  is 
  simply 
  mechanical, 
  not 
  a 
  physiological 
  union. 
  The 
  

   different 
  life 
  types 
  or 
  character 
  of 
  the 
  scion 
  and 
  top 
  do 
  not 
  fuse, 
  but 
  

   we 
  have 
  a 
  mechanical 
  union 
  of 
  cells, 
  and 
  that 
  mechanical 
  union 
  is 
  as 
  

   clearly 
  shown 
  foi'th 
  as 
  po.ssible 
  when 
  we 
  make 
  a 
  section 
  through 
  the 
  

   point 
  of 
  union. 
  If 
  your 
  type 
  of 
  cell 
  in 
  the 
  stock 
  differs 
  very 
  materially 
  

   from 
  the 
  type 
  of 
  structure 
  in 
  the 
  scion, 
  the 
  union 
  is 
  unsatisfactory. 
  If 
  

   the 
  types 
  of 
  tissue 
  are 
  much 
  alike, 
  the 
  imion 
  is 
  good 
  and 
  you 
  do 
  not 
  

   have 
  either 
  overgrowth 
  of 
  stock 
  or 
  undergrowth 
  of 
  scion 
  very 
  much, 
  but 
  

   you 
  have 
  what 
  is 
  called 
  a 
  good 
  union. 
  It 
  is 
  to 
  some 
  extent 
  a 
  question 
  of 
  

   mechanics, 
  in 
  my 
  judgment, 
  influenced 
  by 
  the 
  cell 
  structure 
  of 
  stock 
  

   and 
  scion. 
  If 
  you 
  have 
  a 
  good, 
  smooth 
  union, 
  the 
  two 
  grow 
  equally. 
  

   Where 
  you 
  have 
  overgrowth 
  of 
  scion, 
  you 
  usually 
  have 
  a 
  starved 
  root, 
  

   because 
  the 
  food 
  which 
  is 
  to 
  be 
  returned 
  elaborated 
  is 
  checked 
  at 
  the 
  

   point 
  of 
  union, 
  the 
  root 
  is 
  starved, 
  and 
  you 
  have 
  a 
  short 
  lived 
  tree, 
  be- 
  

   cause 
  your 
  root 
  system, 
  which 
  ought 
  to 
  receive 
  its 
  share 
  of 
  the 
  dis- 
  

   tributed 
  food, 
  is 
  underfed, 
  finally 
  weakens, 
  and 
  the 
  whole 
  structure 
  

   fail^?. 
  , 
  

  

  Professor 
  Lake: 
  You 
  mav 
  have 
  mechanical 
  union, 
  but 
  you 
  can't 
  

  

  