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  .selves. 
  These, 
  with 
  the 
  exception 
  of 
  tlie 
  fatty 
  bodies, 
  distinctly 
  re- 
  

   tained 
  their 
  cellular 
  structure 
  and 
  the 
  main 
  features 
  at 
  least 
  of 
  their 
  

   normal 
  appearance. 
  

  

  A 
  second 
  specimen 
  of 
  the 
  same 
  lot 
  in 
  the 
  same 
  condition 
  and 
  hav- 
  

   ing 
  an 
  identical 
  look, 
  also 
  in 
  the 
  so-called 
  pupal 
  stage, 
  was 
  found 
  on 
  

   inspection 
  to 
  be 
  profusely 
  infested 
  by 
  Entomophthora, 
  the 
  conidia 
  of 
  

   which 
  were 
  abundant 
  in 
  the 
  fluids, 
  more 
  or 
  less 
  contorted, 
  sometimes 
  

   divided 
  once 
  or 
  even 
  twice, 
  and 
  sometimes 
  with 
  short 
  rounded 
  

   branches. 
  Although 
  lying 
  on 
  the 
  surface 
  of 
  the 
  viscera, 
  or 
  even 
  ad- 
  

   hering 
  slightly 
  to 
  them, 
  these 
  seemed 
  to 
  be 
  entirely 
  free 
  from 
  pene- 
  

   tration 
  by 
  the 
  Eutomophthora, 
  which 
  was 
  evidently 
  developing 
  only 
  

   in 
  the 
  blood. 
  The 
  food 
  canal 
  from 
  the 
  (esophagus 
  to 
  and 
  including 
  

   the 
  ca^aa, 
  had 
  its 
  normal 
  structure. 
  This 
  bug, 
  like 
  the 
  preceding, 
  

   was 
  actually 
  dead 
  when 
  selected, 
  but 
  was 
  still 
  fresh 
  and 
  flexible. 
  

   These 
  precise 
  observations 
  throw 
  considerable 
  light 
  on 
  the 
  question 
  

   raised 
  by 
  superficial 
  observers 
  as 
  to 
  the 
  parasitic 
  character 
  of 
  Sporo- 
  

   trichum 
  and 
  as 
  to 
  its 
  precise 
  effect 
  on 
  immature 
  chinch-bugs. 
  That 
  

   Entomophthora 
  is 
  a 
  true 
  parasite 
  no 
  one 
  can 
  doubt, 
  and 
  it 
  is 
  quite 
  

   certain 
  that 
  this 
  and 
  Sporotrichum 
  were' 
  undergoing 
  precisely 
  simi- 
  

   lar 
  development 
  in 
  the 
  same 
  parts 
  of 
  the 
  body 
  of 
  chinch-bngs 
  exactly 
  

   similar 
  as 
  to 
  condition, 
  age, 
  and 
  circumstances. 
  If 
  one 
  was 
  parasitic 
  

   in 
  this 
  case 
  the 
  other 
  was 
  also. 
  

  

  July 
  11. 
  A 
  large 
  number 
  of 
  living 
  specimens 
  brought 
  in 
  at 
  this 
  

   time 
  were 
  placed 
  in 
  a 
  dry 
  wooden 
  box 
  without 
  cover, 
  but 
  chalked 
  at 
  

   the 
  upper 
  edge 
  inside 
  to 
  prevent 
  escape 
  of 
  the 
  bugs. 
  Green 
  corn 
  

   stalks 
  were 
  furnished 
  them 
  as 
  food, 
  and 
  changed 
  as 
  necessary. 
  The 
  

   (conditions 
  were 
  carefully 
  kept 
  as 
  near 
  the 
  normal 
  field 
  experience 
  of 
  

   the 
  chinch-bug 
  as 
  practicable, 
  diifering 
  little, 
  if 
  at 
  all, 
  except 
  in 
  the 
  

   fact 
  that 
  the 
  bugs 
  were 
  screened 
  from 
  the 
  sun 
  and 
  that 
  the 
  food 
  fur- 
  

   nished 
  them 
  was 
  the 
  sap 
  of 
  cut 
  corn 
  instead 
  of 
  that 
  of 
  the 
  growing 
  

   plant. 
  This 
  box 
  was 
  overhauled 
  daily, 
  all 
  of 
  the 
  dead 
  bugs 
  being 
  

   carefully 
  transferred 
  to 
  covered 
  glass 
  dishes 
  of 
  moist 
  sand. 
  Later 
  

   i'xperience 
  show^ed. 
  however, 
  that 
  the 
  amount 
  of 
  care 
  used 
  in 
  hand- 
  

   ling 
  the 
  bugs 
  and 
  their 
  food 
  was 
  not 
  sufficient, 
  and 
  some 
  deaths 
  were 
  

   doubtless 
  to 
  be 
  attributed 
  to 
  small 
  injufies 
  thus 
  received. 
  

  

  Beginning 
  July 
  14, 
  seven 
  dead 
  bugs 
  were 
  removed 
  to 
  a 
  covered 
  

   glass 
  dish, 
  two 
  of 
  which 
  were 
  covered 
  with 
  Entomophthora 
  on 
  the 
  

   next 
  day, 
  after 
  which 
  there 
  was 
  no 
  change. 
  

  

  July 
  15, 
  twelve 
  were 
  removed, 
  one 
  of 
  which 
  showed 
  Entomoph- 
  

   thora 
  on 
  the 
  l<)tli. 
  but 
  no 
  further 
  development 
  up 
  to 
  the 
  29t]i. 
  

  

  July 
  16, 
  three 
  were 
  removed. 
  Two 
  days 
  later 
  one 
  was 
  covered 
  

   with 
  Entomophthora 
  and 
  one 
  with 
  Sporotrichum. 
  The 
  third 
  re- 
  

   mained 
  unchanged 
  until 
  attacked 
  by 
  common 
  molds 
  on 
  the 
  25th. 
  

  

  July 
  17, 
  four 
  were 
  removed, 
  one 
  of 
  which 
  showed 
  Entomophthora 
  

   the 
  next 
  day. 
  Observations 
  were 
  discontinued 
  on 
  the 
  29th, 
  wuth 
  no 
  

   further 
  changes. 
  

  

  July 
  18, 
  three 
  were 
  removed. 
  The 
  next 
  day 
  one 
  was 
  decaying 
  

   with 
  a 
  seemingly 
  bacterial 
  affection. 
  The 
  others 
  remained 
  unchanged 
  

   until 
  the 
  29th. 
  Observation 
  discontinued. 
  

  

  