﻿352 
  Mr. 
  F. 
  Enock's 
  life-history 
  of 
  

  

  copies 
  of 
  the 
  results 
  of 
  my 
  various 
  collections 
  of 
  puparia, 
  

   giving 
  the 
  dates 
  when 
  the 
  flies 
  and 
  parasites 
  emerged. 
  

  

  On 
  Aug. 
  5th, 
  1887, 
  in 
  answer 
  to 
  an 
  invitation 
  from 
  

   Mr. 
  Palmer, 
  who 
  asked 
  me 
  to 
  come 
  and 
  examine 
  his 
  

   fields, 
  I 
  i3aid 
  a 
  visit 
  to 
  the 
  now 
  well-known 
  Eevell's 
  Hall, 
  

   Hertford. 
  The 
  barley 
  was 
  in 
  splendid 
  condition 
  for 
  

   examining, 
  and 
  I 
  had 
  no 
  difficulty 
  in 
  picking 
  out 
  the 
  

   infested 
  straws, 
  for 
  they 
  were 
  very 
  plentiful, 
  and 
  in 
  two 
  

   hours 
  I 
  had 
  cut 
  over 
  three 
  hundred. 
  

  

  Aug. 
  8th. 
  I 
  searched 
  another 
  field, 
  but, 
  before 
  doing 
  

   so, 
  I 
  proceeded 
  to 
  mark 
  out 
  with 
  net- 
  sticks 
  and 
  umbrella 
  

   a 
  distance 
  of 
  twenty 
  yards 
  up 
  the 
  rows. 
  Starting 
  to 
  

   walk 
  slowly 
  between 
  these, 
  I 
  examined 
  three 
  rows 
  at 
  

   either 
  side, 
  cutting 
  with 
  a 
  large 
  pair 
  of 
  scissors 
  the 
  bent 
  

   straws 
  into 
  lengths 
  of 
  about 
  two 
  inches, 
  counting 
  and 
  

   placing 
  them 
  in 
  a 
  bag 
  slung 
  round 
  my 
  neck 
  ; 
  arrived 
  at 
  

   the 
  distance-stake, 
  I 
  noted 
  down 
  the 
  result, 
  moved 
  the 
  

   stake 
  further 
  along, 
  and 
  resumed 
  my 
  work 
  " 
  all 
  among 
  

   the 
  barley" 
  ; 
  but 
  I 
  did 
  not 
  feel 
  at 
  all 
  "free 
  " 
  (as 
  the 
  well- 
  

   known 
  glee 
  goes), 
  for 
  the 
  barley 
  "haulm," 
  as 
  most 
  folks 
  

   know, 
  has 
  a 
  peculiar 
  knack 
  of 
  getting 
  up 
  the 
  sleeves, 
  and, 
  

   after 
  travelling 
  about, 
  emerges 
  at 
  the 
  neck. 
  At 
  first 
  this 
  

   was 
  decidedly 
  irritating, 
  but, 
  as 
  " 
  familiarity 
  breeds 
  con- 
  

   tempt," 
  I 
  soon 
  got 
  used 
  to 
  it, 
  and 
  went 
  on 
  with 
  my 
  

   search, 
  until 
  the 
  sound 
  of 
  a 
  country 
  church 
  clock 
  striking 
  

   the 
  hour 
  told 
  me 
  I 
  had 
  worked 
  just 
  four 
  hours, 
  during 
  

   which 
  time 
  I 
  had 
  traversed 
  a 
  distance 
  of 
  eighty 
  yards 
  by 
  

   twenty, 
  and 
  cut 
  over 
  800 
  straws, 
  each 
  of 
  which 
  contained 
  

   from 
  one 
  to 
  four 
  puparia. 
  From 
  these 
  I 
  bred 
  280 
  

   Hessian 
  Flies 
  and 
  358 
  parasites 
  of 
  various 
  kinds. 
  

  

  In 
  1888 
  I 
  made 
  collections 
  on 
  July 
  5th 
  and 
  17th, 
  and 
  

   on 
  Aug. 
  3rd 
  and 
  15th, 
  spending 
  about 
  four 
  hours 
  each 
  

   time 
  in 
  cutting 
  the 
  bent 
  straws 
  ; 
  and 
  though 
  wet 
  weather 
  

   interfered 
  a 
  good 
  deal 
  with 
  my 
  operations, 
  I 
  obtained 
  

   1458 
  infested 
  straws. 
  In 
  addition 
  to 
  these, 
  Mr. 
  Palmer 
  

   sent 
  to 
  me 
  two 
  bags 
  of 
  screenings, 
  one 
  from 
  1887 
  harvest, 
  

   which 
  I 
  have 
  already 
  described, 
  and 
  the 
  other 
  from 
  1888 
  

   crop 
  ; 
  and 
  from 
  this, 
  after 
  many 
  tedious 
  hours' 
  work, 
  

   much 
  lightened 
  by 
  the 
  help 
  of 
  my 
  wife, 
  we 
  picked 
  1694 
  

   puparia, 
  more 
  or 
  less 
  injured 
  by 
  the 
  thresher, 
  but, 
  in 
  

   spite 
  of 
  this, 
  261 
  Hessian 
  Flies 
  and 
  319 
  parasites 
  emerged. 
  

  

  During 
  the 
  year 
  1889 
  the 
  weather 
  was 
  so 
  bad 
  that 
  

   I 
  had 
  only 
  one 
  day's 
  collecting, 
  and 
  then 
  my 
  search 
  was 
  

   stopped 
  several 
  times 
  by 
  heavy 
  thunderstorms 
  and 
  

   drenching 
  rain, 
  rendering 
  a 
  barley 
  field 
  anything 
  but 
  a 
  

  

  