﻿ly 
  TABLE 
  OF 
  CONTENTS. 
  

  

  CHAPTER 
  V. 
  

  

  Page. 
  

  

  Data 
  obtained 
  from 
  solar 
  physics 
  and 
  earthquake 
  commotions 
  ap- 
  

   plied 
  TO 
  elucidate 
  locust 
  multiplication 
  and 
  migration. 
  By 
  Mr. 
  

   A. 
  H. 
  S 
  winton 
  65 
  

  

  Importance 
  of 
  the 
  central 
  luminary, 
  wide 
  effects 
  of 
  variation 
  in 
  it« 
  poten- 
  - 
  

   tial 
  energy, 
  65 
  — 
  on 
  the 
  tides, 
  on 
  chemical 
  and 
  organic 
  activities, 
  on 
  the 
  

   physical 
  forces, 
  on 
  epidemics, 
  etc., 
  65, 
  66— 
  periods 
  of 
  sun 
  spots, 
  electrical 
  

   effects 
  of, 
  66 
  — 
  thermometric 
  effects 
  of, 
  67 
  — 
  volcanic 
  effects 
  of, 
  68 
  — 
  ento- 
  

   mological 
  effects 
  of, 
  68 
  — 
  a 
  new 
  sun-spot 
  table, 
  69 
  — 
  statement 
  and 
  tabula- 
  

   tion 
  of 
  sun-spot 
  dates, 
  69 
  — 
  comparison 
  of 
  sun-spot 
  periods 
  and 
  insect 
  

   IDeriods, 
  73 
  — 
  American 
  locusts 
  diminished 
  by 
  the 
  spots, 
  73 
  — 
  European 
  con- 
  

   firmative 
  examples 
  of 
  locusts 
  and 
  other 
  insects, 
  74 
  — 
  tabulation 
  of 
  rare 
  

   insect 
  captures, 
  79 
  — 
  explained, 
  «1 
  — 
  migration 
  and 
  distribution 
  affected, 
  

   81 
  — 
  locusts 
  again 
  predicted 
  in 
  four 
  or 
  ten 
  years, 
  83 
  — 
  conclusions, 
  84. 
  

  

  PART 
  II.— 
  THE 
  ARMY 
  WORM, 
  OANKER- 
  WORMS, 
  AND 
  THE 
  

  

  HESSIAN 
  FLY. 
  

  

  CHAPTER 
  VI. 
  

   The 
  army 
  worm 
  89 
  

  

  Nomenclature, 
  89 
  — 
  other 
  army 
  worms, 
  falsely 
  so 
  called, 
  89 
  — 
  geographical 
  

   distribution, 
  91 
  — 
  injuries 
  by, 
  92 
  — 
  past 
  history 
  of, 
  92 
  — 
  descriptive 
  char- 
  

   acters 
  of, 
  101— 
  the 
  egg, 
  101 
  — 
  the 
  larva, 
  102 
  — 
  the 
  pupa, 
  103 
  — 
  adults 
  and 
  

   sexual 
  differences, 
  103 
  — 
  habits 
  and 
  natural 
  history, 
  105 
  — 
  oviposition, 
  

   105 
  — 
  habits 
  when 
  young, 
  108 
  — 
  duration 
  of 
  larval 
  life, 
  109— 
  traveling 
  

   habits, 
  etc., 
  110 
  — 
  time 
  of 
  appearance, 
  112 
  — 
  sudden 
  appearance 
  and 
  dis- 
  

   appearance, 
  114 
  — 
  food-plants, 
  116 
  — 
  the 
  pupa 
  state, 
  117 
  — 
  habits 
  of 
  the 
  

   moth, 
  117 
  — 
  flight, 
  118 
  — 
  position 
  at 
  rest, 
  118 
  — 
  number 
  of 
  broods 
  yearly, 
  

   118 
  — 
  hibernation, 
  122 
  — 
  natural 
  enemies, 
  125 
  — 
  remedies, 
  128 
  — 
  burning 
  old 
  

   grass, 
  etc., 
  128 
  — 
  predictions, 
  meteorological 
  influences 
  on 
  the 
  species, 
  

   129 
  — 
  ditching, 
  coal 
  tar, 
  poisoning, 
  130 
  — 
  rolling, 
  fencing, 
  roping, 
  131 
  — 
  re- 
  

   port 
  of 
  observations 
  by 
  L. 
  O, 
  Howard, 
  132 
  — 
  extent 
  of 
  country 
  injured, 
  

   133 
  — 
  crops 
  injured, 
  133 
  — 
  amount 
  of 
  damage, 
  133 
  — 
  previous 
  season 
  and 
  

   crop, 
  134 
  — 
  number 
  of 
  broods, 
  1:^4 
  — 
  an 
  accompanying 
  cut-worm, 
  135 
  — 
  

   natural 
  enemies, 
  135 
  — 
  army-worm 
  correspondence 
  in 
  spring 
  of 
  1882, 
  136 
  — 
  

   the 
  invasion 
  of 
  1880 
  in 
  New 
  Jersey, 
  by 
  Rev. 
  Samuel 
  Lockwood, 
  139 
  — 
  per- 
  

   formances 
  of 
  the 
  worms, 
  139 
  — 
  the 
  direction 
  of 
  travel, 
  141 
  — 
  origin, 
  eggs, 
  

   etc., 
  143 
  — 
  breeding 
  spats, 
  143 
  — 
  recapitulation, 
  habits, 
  and 
  remedies, 
  145 
  — 
  

   notes 
  from 
  Prof. 
  C. 
  Y. 
  Riley, 
  the 
  number 
  of 
  broods, 
  hibernation, 
  seasonal 
  

   influences, 
  147 
  — 
  Bibliography, 
  148. 
  

  

  CHAPTER 
  VII. 
  

   Canker-worms 
  157 
  

  

  Classification, 
  157 
  — 
  two 
  distinct 
  insects 
  concerned, 
  158 
  — 
  differences 
  be- 
  

   tween 
  them, 
  159 
  — 
  nomenclature, 
  162 
  — 
  past 
  history, 
  165 
  — 
  the 
  spring 
  cank- 
  

   er-worm, 
  170 
  — 
  range 
  of 
  the 
  species, 
  170 
  — 
  character^, 
  171 
  — 
  habits 
  and 
  nat- 
  

   ural 
  history, 
  172 
  — 
  appearance 
  of 
  the 
  worms, 
  173 
  — 
  food-plants, 
  174 
  — 
  modes 
  

   of 
  distribution, 
  175 
  — 
  enemies, 
  175 
  — 
  destructiveness 
  of 
  canker-worms, 
  

   178 
  — 
  the 
  fall 
  canker-worm, 
  179 
  — 
  range 
  of 
  this 
  species, 
  179— 
  its 
  characters, 
  

   180 
  — 
  habits 
  and 
  natural 
  history, 
  181 
  — 
  oviposition, 
  182 
  — 
  season 
  of 
  ap- 
  

   pearance, 
  182 
  — 
  pupation, 
  183 
  — 
  food-plants, 
  18.3 
  — 
  remedies 
  and 
  preventive 
  

   measures 
  applicable 
  to 
  both 
  species, 
  183 
  — 
  sticky 
  substances, 
  183 
  — 
  hang- 
  

   ing 
  tin 
  band, 
  185 
  — 
  troughs 
  of 
  oil, 
  186 
  — 
  precautions 
  and 
  classification 
  of 
  

   contrivances, 
  189 
  — 
  ^jarring 
  and 
  burning, 
  191 
  — 
  washes 
  and 
  dustings, 
  191 
  — 
  

   Paris 
  green, 
  192 
  — 
  muriate 
  of 
  lime, 
  192 
  — 
  sulphur 
  plugged 
  in 
  trees, 
  193 
  — 
  

   fall 
  plowing, 
  193 
  — 
  birds 
  and 
  parasites, 
  195 
  — 
  different 
  measures 
  against 
  

   the 
  species, 
  196. 
  

  

  