﻿410 
  ANNUAL 
  REPORT 
  SMITHSONIAN 
  INSTITUTION, 
  1943 
  

  

  the 
  other 
  side 
  of 
  the 
  tree, 
  where 
  the 
  previous 
  tapping 
  had 
  been 
  made, 
  

   the 
  rubber 
  still 
  showed 
  good 
  quality. 
  The 
  contrast 
  of 
  the 
  two 
  sam- 
  

   ples, 
  one 
  elastic 
  and 
  tough, 
  with 
  the 
  surface 
  clean 
  and 
  dry, 
  the 
  other 
  

   weak 
  and 
  sticky, 
  left 
  no 
  doubt 
  that 
  the 
  quality 
  of 
  the 
  rubber 
  material 
  

   formed 
  in 
  the 
  latex 
  could 
  be 
  seriously 
  affected 
  by 
  conditions 
  of 
  

   growth. 
  

  

  SELECTED 
  LIST 
  OF 
  PREVIOUS 
  PUBLICATIONS 
  RELATING 
  TO 
  

   RUBBER 
  OR 
  TO 
  GROWTH 
  DISORDERS 
  OF 
  PLANTS 
  

  

  (Unless 
  otherwise 
  stated, 
  all 
  papers 
  were 
  written 
  by 
  the 
  present 
  author. 
  Papers 
  

   in 
  this 
  list 
  are 
  usually 
  referred 
  to 
  in 
  the 
  text 
  merely 
  by 
  dates.) 
  

  

  1900. 
  Rubber 
  cultivation 
  for 
  Porto 
  Rico. 
  U. 
  S. 
  Dep. 
  Agr., 
  Div. 
  Bot. 
  Circ. 
  28. 
  

  

  12 
  pp. 
  

  

  1901. 
  Agriculture 
  in 
  the 
  tropical 
  islands 
  of 
  the 
  United 
  States. 
  U. 
  S. 
  Dep. 
  Agr. 
  

  

  Yearbook 
  for 
  1901, 
  pp. 
  349-368. 
  

   1903a. 
  The 
  culture 
  of 
  the 
  Central 
  American 
  rubber 
  tree. 
  U. 
  S. 
  Dep. 
  Agr., 
  Bur. 
  

  

  Plant 
  Ind. 
  Bull. 
  49. 
  86 
  pp. 
  

   1903b. 
  Four 
  new 
  species 
  of 
  the 
  Central 
  American 
  rubber 
  tree. 
  Science, 
  vol. 
  18, 
  

  

  pp. 
  436-439. 
  

  

  1909. 
  Vegetation 
  affected 
  by 
  agriculture 
  in 
  Central 
  America. 
  U. 
  S. 
  Dep. 
  Agr., 
  

  

  Bur. 
  Plant 
  Ind. 
  Bull. 
  145. 
  30 
  pp. 
  

  

  1910. 
  A 
  preliminary 
  treatment 
  of 
  the 
  genus 
  Castilla, 
  by 
  H. 
  Pittier. 
  U. 
  S. 
  Nat. 
  

  

  Mus., 
  Contr. 
  U. 
  S. 
  Nat. 
  Herbarium, 
  vol. 
  13, 
  pp. 
  247-279, 
  pis. 
  22-42. 
  

   1911a. 
  Dimorphic 
  branches 
  in 
  tropical 
  crop 
  plants: 
  cotton, 
  coffee, 
  cacao, 
  the 
  

  

  Central 
  Amercian 
  rubber 
  tree, 
  and 
  the 
  banana. 
  U. 
  S. 
  Dep. 
  Agr., 
  Bur. 
  

  

  Plant 
  Ind. 
  Bull. 
  198. 
  64 
  pp. 
  

   1911b. 
  Notes 
  on 
  southern 
  Mexico, 
  by 
  G. 
  N. 
  Collins 
  and 
  C. 
  B. 
  Doyle. 
  Nat. 
  

  

  Geogr. 
  Mag., 
  vol. 
  22, 
  pp. 
  301-320. 
  

   1913. 
  Nomenclature 
  of 
  the 
  sapote 
  and 
  the 
  sapodilla. 
  U. 
  S. 
  Nat. 
  Mus., 
  Contr. 
  

  

  U. 
  S. 
  Nat. 
  Herbarium, 
  vol. 
  16, 
  pp. 
  277-285. 
  

   1920. 
  A 
  disorder 
  of 
  cotton 
  plants 
  in 
  China. 
  Journ. 
  Heredity, 
  vol. 
  11, 
  pp. 
  99-110. 
  

  

  Illustr. 
  

   1923a. 
  Malformations 
  of 
  cotton 
  plants 
  in 
  Haiti. 
  Journ. 
  Heredity, 
  vol. 
  14, 
  

  

  pp. 
  323-325. 
  Illustr. 
  

   1923b. 
  Sources 
  of 
  crude 
  rubber. 
  U. 
  S. 
  Dep. 
  Agr., 
  Rep. 
  of 
  Chief, 
  Bur. 
  Plant 
  

  

  Ind., 
  for 
  1922-1923, 
  pp. 
  28-30. 
  

   1923c. 
  Possibilities 
  of 
  rubber 
  production. 
  U. 
  S. 
  Dep. 
  Agr., 
  Rep. 
  of 
  Secretary 
  

  

  for 
  1923, 
  p. 
  51. 
  

   1924a. 
  Acromania, 
  or 
  "crazy 
  top," 
  a 
  growth 
  disorder 
  of 
  cotton. 
  Journ. 
  Agr. 
  

  

  Res., 
  vol. 
  28, 
  pp. 
  803-827. 
  Illustr. 
  

   1924b. 
  Rubber 
  plants. 
  U. 
  S. 
  Dep. 
  Agr., 
  Rep. 
  of 
  Chief, 
  Bur. 
  Plant 
  Ind., 
  for 
  

  

  1923-1924, 
  p. 
  34. 
  

   1925a. 
  Rubber. 
  U. 
  S. 
  Dep. 
  Agr., 
  Rep. 
  of 
  Chief, 
  Bur. 
  Plant 
  Ind., 
  for 
  1924-1925, 
  

  

  pp. 
  21-23. 
  

   1925b. 
  Tropical 
  America 
  adapted 
  to 
  rubber. 
  U. 
  S. 
  Dep. 
  Agr. 
  Off. 
  Rec, 
  vol. 
  4, 
  

  

  No. 
  39, 
  pp. 
  1-2. 
  

  

  1926. 
  Para 
  rubber 
  tree 
  is 
  found 
  at 
  Palm 
  Beach. 
  U. 
  S. 
  Dep. 
  Agr. 
  Off. 
  Rec, 
  

  

  vol. 
  5, 
  No. 
  39, 
  pp. 
  1-2, 
  8. 
  

  

  1927. 
  Rubber 
  plants. 
  U. 
  S. 
  Dep. 
  Agr., 
  Rep. 
  of 
  Chief, 
  Bur. 
  Plant 
  Ind., 
  for 
  

  

  1926-1927, 
  pp. 
  28-29. 
  

  

  