﻿[56] 
  REPORT 
  UNITED 
  STATES 
  ENTOMOLOGICAL 
  COMMISSION. 
  

  

  was 
  myself 
  a 
  resident 
  of 
  Council 
  Grove 
  for 
  three 
  years 
  prior 
  to 
  the 
  war, 
  

   and 
  I 
  have 
  now 
  a 
  number 
  of 
  acquaintances 
  who 
  have 
  resided 
  there 
  con- 
  

   tiuuously 
  for 
  twenty-five 
  years. 
  Conferring 
  with 
  them 
  specially 
  on 
  this 
  

   subject 
  on 
  the 
  occasion 
  of 
  my 
  late 
  visit, 
  I 
  found 
  that 
  their 
  long 
  experi- 
  

   ences 
  confirmed 
  my 
  own 
  observations. 
  Various 
  causes 
  are 
  assigned 
  for 
  

   these 
  climatic 
  changes. 
  One 
  is 
  the 
  disappearance 
  of 
  the 
  vast 
  herds 
  of 
  

   buffalo, 
  thus 
  making 
  possible 
  a 
  rank 
  growth 
  of 
  prairie 
  grass, 
  which 
  in 
  

   turn 
  induces 
  a 
  heavier 
  dew-fall. 
  Another 
  is 
  the 
  planting 
  of 
  groves 
  and 
  

   the 
  successful 
  cultivation 
  of 
  timber. 
  Having 
  been 
  encouraged 
  by 
  State 
  

   legislation, 
  the 
  planting 
  of 
  trees 
  has 
  become 
  very 
  general. 
  That 
  a 
  

   greater 
  degree 
  of 
  rain-fall 
  is 
  produced 
  by 
  these 
  causes 
  is 
  the 
  opinion 
  

   of 
  those 
  who 
  are 
  best 
  informed. 
  I 
  reached 
  Denver 
  on 
  the 
  18th 
  

   of 
  August, 
  and 
  proceeded 
  to 
  Colorado 
  Springs 
  on 
  the 
  follow- 
  

   ing 
  day. 
  Dry 
  weather 
  had 
  prevailed 
  here 
  for 
  a 
  number 
  of 
  weeks, 
  

   but 
  on 
  the 
  day 
  of 
  my 
  arrival 
  a 
  heavy 
  rain 
  fell, 
  lasting 
  several 
  

   hours. 
  I 
  obtained 
  the 
  services 
  of 
  an 
  assistant 
  for 
  a 
  short 
  time, 
  

   and 
  made 
  examinations 
  for 
  locusts 
  on 
  the 
  hills 
  east 
  and 
  on 
  the 
  plains 
  

   south 
  of 
  the 
  village. 
  I 
  obtained 
  specimens 
  of 
  the 
  only 
  species 
  to 
  be 
  

   found 
  in 
  the 
  vicinity, 
  and 
  preserved 
  them 
  with 
  care. 
  I 
  visited 
  Manitou 
  

   and 
  obtained 
  and 
  preserved 
  specimens 
  of 
  locusts 
  from 
  the 
  lower 
  hills 
  

   adjacent 
  to 
  the 
  Ute 
  Pass. 
  I 
  ascended 
  Pikers 
  Peak 
  on 
  the 
  22d 
  of 
  August 
  

   and 
  collected 
  specimens 
  at 
  various 
  poiuts 
  on 
  the 
  way. 
  The 
  highest 
  

   point 
  at 
  which 
  I 
  found 
  the 
  locusts 
  was 
  above 
  the 
  timber-line 
  and 
  one 
  

   and 
  a 
  half 
  miles 
  from 
  the 
  summit. 
  No 
  locusts 
  of 
  any 
  kind 
  were 
  found 
  

   on 
  the 
  summit, 
  and 
  I 
  was 
  informed 
  by 
  the 
  officers 
  of 
  the 
  Signal 
  Service 
  

   stationed 
  there 
  that 
  none 
  had 
  made 
  an 
  appearance 
  there 
  during 
  the 
  

   summer. 
  On 
  my 
  return 
  to 
  Denver 
  I 
  obtained 
  specimens 
  of 
  the 
  species 
  

   of 
  locusts 
  found 
  in 
  the 
  fields 
  and 
  on 
  the 
  plains 
  north 
  of 
  the 
  city. 
  I 
  vis- 
  

   ited 
  Georgetown 
  and 
  obtained 
  specimens 
  of 
  locusts 
  on 
  the 
  adjacent 
  hills. 
  

   I 
  visited 
  Middle 
  Park, 
  taking 
  the 
  stage 
  at 
  Georgetown 
  for 
  that 
  place 
  

   on 
  the 
  26th 
  of 
  August. 
  The 
  route 
  lay 
  over 
  the 
  Berthoud 
  Passj 
  highest 
  

   elevation, 
  11,300 
  feet. 
  Locusts 
  were 
  taken 
  on 
  the 
  summit 
  and 
  at 
  various 
  

   points 
  down 
  the 
  western 
  slope 
  as 
  far 
  as 
  Hot 
  Sulphur 
  Springs. 
  I 
  re- 
  

   turned 
  to 
  Chicago 
  by 
  way 
  of 
  Cheyenne 
  and 
  Omaha, 
  leaving 
  Denver 
  on 
  

   the 
  29th 
  of 
  August. 
  The 
  specimens 
  of 
  locusts 
  collected 
  at 
  the 
  various 
  

   points 
  I 
  have 
  indicated 
  were 
  carefully 
  preserved 
  and 
  transmitted 
  to 
  

   you 
  by 
  express 
  from 
  Chicago. 
  I 
  returned 
  to 
  Washington 
  on 
  the 
  4th 
  of 
  

   September, 
  

  

  The 
  above 
  report 
  is 
  respectfully 
  submitted. 
  

  

  A. 
  J. 
  CHIPMAK 
  

  

  Prof. 
  Cyrus 
  Thomas, 
  

  

  Member 
  and 
  Disbursing 
  Agent 
  of 
  the 
  Entomological 
  Commission, 
  

  

  