﻿124 
  REPORT 
  UNITED 
  STATES 
  ENTOMOLOGICAL 
  COMMISSION. 
  

  

  Table 
  VII. 
  — 
  Monthly 
  and 
  annual 
  rainfall 
  in 
  inches 
  from 
  1872 
  to 
  1878 
  — 
  Continued. 
  

  

  Years 
  and 
  stations. 
  

  

  

  

  a 
  

  

  a 
  

  

  >> 
  

   c3 
  

  

  I 
  

  

  J 
  

  

  ft 
  

  

  1 
  

  

  ft 
  

   «4 
  

  

  

  9 
  

  

  P 
  

  

  

  p 
  

   < 
  

  

  I 
  

  

  ft 
  

  

  & 
  

   ■§ 
  

  

  a 
  

  

  O 
  

  

  ^ 
  - 
  

   I 
  

  

  § 
  

  

  COLORADO 
  SPRINGS, 
  

   COLO. 
  

  

  1874 
  

  

  In. 
  

   16.53 
  

   17.37 
  

  

  In. 
  

   •0.06 
  

   0.24 
  

   0.12 
  

  

  In. 
  

   0.54 
  

   0.56 
  

   0.19 
  

  

  In. 
  

   0.50 
  

   1.12 
  

   0.63 
  

  

  In. 
  

   3.55 
  

   0.30 
  

   0.52 
  

  

  In. 
  

   5.90 
  

   1.03 
  

   3.83 
  

  

  In. 
  

   0.20 
  

   1.82 
  

   1.89 
  

  

  In. 
  

   0.81 
  

   6.07 
  

  

  In. 
  

   0.91 
  

   2.39 
  

  

  In. 
  

   3.37 
  

   2.23 
  

  

  r 
  \r 
  

   In. 
  In. 
  

  

  0. 
  19 
  ! 
  35 
  

  

  In. 
  

  

  n 
  15 
  

  

  1875 
  

  

  0. 
  13 
  i 
  1. 
  19 
  j 
  0. 
  29 
  

  

  .1876 
  

  

  

  SAINT 
  LOUIS, 
  MO. 
  

   1872 
  

  

  

  

  

  

  0. 
  55 
  i 
  2. 
  01 
  

   3.27 
  ! 
  1.64 
  

  

  1. 
  09 
  2- 
  32 
  

  

  1.70 
  

  

  1873 
  

  

  1874 
  

  

  45.02 
  

   37.79 
  

   42.99 
  

   48.46 
  

   41.26 
  

  

  3.53 
  

   3.04 
  

   0.54 
  

   4.75 
  

   1.24 
  

   2.36 
  

  

  1.52 
  

   3.66 
  

   2.59 
  

   2.86 
  

   0.88 
  

   1.69 
  

  

  2.10 
  

   4.36 
  

   4.08 
  

   6.90 
  

   3.41 
  

   2.79 
  

  

  6.86 
  

   3.43 
  

   2.53 
  

   2.25 
  

   2.86 
  

   6.74 
  

  

  5.27 
  

   3.70 
  

   5.48 
  

   3.13 
  

   3.11 
  

   4.63 
  

  

  6.68 
  

   2.00 
  

   10.84 
  

   6.43 
  

   8.69 
  

   2.40 
  

  

  5.96 
  

   6.71 
  

   9.49 
  

   6.90 
  

   2.88 
  

  

  0.07 
  

   4.70 
  

   2.66 
  

   5.03 
  

   2.61 
  

  

  3.02 
  

   2.32 
  

   0.24 
  

   7.63 
  

   3.56 
  

  

  5.10 
  

   1.46 
  

  

  1875 
  

  

  1.23 
  

   1.66 
  

   4.92 
  

  

  0.89 
  

   1.74 
  

   3.76 
  

  

  2 
  42 
  

  

  1876 
  

  

  1877 
  

  

  1878 
  

  

  0.18 
  

   3.34 
  

  

  SANTA 
  FE, 
  N. 
  MEX. 
  

   1872 
  

  

  

  

  

  

  0.25 
  

   0.07 
  

  

  2.47 
  

   0.06 
  

  

  0.01 
  

   0.38 
  

   0.58 
  

   1.50 
  

  

  0.04 
  

  

  1873.. 
  

  

  1874 
  

  

  1875 
  

  

  9.47 
  

   19.83 
  

   18.97 
  

   15.07 
  

   13.15 
  

  

  0.55 
  

   1.39 
  

   0.67 
  

   0.61 
  

   0.18 
  

   0.21 
  

  

  0.14 
  

   1.60 
  

   0.72 
  

   0.40 
  

   1.08 
  

   0.89 
  

  

  0.15 
  

   1.51 
  

   1.37 
  

   0.64 
  

   0.14 
  

   0.73 
  

  

  0.26 
  

   1.71 
  

   0.33 
  

   0.46 
  

   1.83 
  

   0.22 
  

  

  0.33 
  

   0.70 
  

   0.88 
  

   0.83 
  

   0.92 
  

   1.01 
  

  

  1.72- 
  

   0.54 
  

   0.33 
  

   1.62 
  

   0.13 
  

   3.18 
  

  

  1.02 
  

   3.92 
  

   6.91 
  

   5.43 
  

   3.54 
  

  

  2.79 
  

   1.73 
  

   1.59 
  

   2.13 
  

   1.72 
  

  

  1.23 
  

   1.42 
  

   4.14 
  

   0.85 
  

   0.96 
  

  

  0.83 
  

   2.26 
  

   0.47 
  

  

  1876 
  

  

  0. 
  75 
  0. 
  97 
  

  

  0.38 
  

  

  "1877 
  

  

  1878 
  

  

  1.32 
  

  

  0.70 
  

  

  0.63 
  

  

  FORT 
  GIBSON, 
  IND. 
  T. 
  

   1873 
  

  

  

  

  

  

  2.80 
  

   0.81 
  

   1.19 
  

   1.10 
  

   6.36 
  

  

  1.97 
  

   4.64 
  

   2.26 
  

   2.89 
  

   4.19 
  

  

  3.66 
  

  

  1874 
  

  

  38.88 
  

   44.10 
  

   35.48 
  

   46.79 
  

  

  3.69 
  

   0.64 
  

   4.94 
  

   0.29 
  

   2.79 
  

  

  3.44 
  

   0.73 
  

   0.64 
  

   1.47 
  

   2.40 
  

  

  2.91 
  

   2.48 
  

   5.67 
  

   2.27 
  

   1.44 
  

  

  5.83 
  

   8.74 
  

   1.85 
  

   7.77 
  

   2.83 
  

  

  3.54 
  

   5.59 
  

   1.94 
  

  

  4.82 
  

   7.52 
  

  

  3.38 
  

   3.52 
  

   6.82 
  

   7.74 
  

   6.61 
  

  

  1.99 
  

  

  10.93 
  

  

  6.06 
  

  

  2.89 
  

  

  1.54 
  

   4.27 
  

   0.94 
  

   3.78 
  

  

  4.41 
  

   1.34 
  

   2.43 
  

   2.21 
  

  

  2.70 
  

  

  1875 
  

  

  2.41 
  

  

  1876 
  

  

  0.20 
  

  

  1877.... 
  

  

  1878 
  

  

  3.00 
  

  

  

  

  

  

  

  

  

  

  We 
  propose 
  to 
  discuss 
  first 
  the 
  record 
  of 
  temperature 
  ; 
  but 
  in 
  order 
  

   to 
  do 
  this 
  in 
  a 
  way 
  to 
  be 
  clearly 
  and 
  easily 
  understood, 
  it 
  is 
  necessary 
  

   to 
  consider 
  each 
  point 
  or 
  bearing 
  separately, 
  and 
  so 
  far 
  as 
  possible 
  

   tabulate 
  the 
  results. 
  

  

  As 
  heretofore 
  intimated, 
  it 
  is 
  unnecessary 
  to 
  take 
  any 
  further 
  notice 
  

   of 
  the 
  annual 
  mean 
  temperature 
  ; 
  we 
  shall 
  therefore 
  confine 
  our 
  discus- 
  

   sion 
  to 
  the 
  monthly 
  means 
  as 
  shown 
  in 
  Table 
  VI. 
  

  

  If 
  the 
  excessive 
  development 
  of 
  locusts 
  depends 
  upon 
  unusual 
  heat 
  

   as 
  one 
  of 
  the 
  necessary 
  meteorological 
  influences, 
  and 
  uo 
  adequate 
  va- 
  

   riation 
  is 
  shown 
  in 
  the 
  annual 
  means, 
  it 
  ought 
  to 
  appear 
  in 
  the 
  monthly 
  

   means, 
  for 
  it 
  is 
  absurd 
  to 
  suppose 
  it 
  depends 
  upon 
  the 
  temperature 
  of 
  

   one 
  or 
  two 
  days, 
  and 
  a 
  considerable 
  variation 
  in 
  several 
  days 
  will 
  be 
  

   shown 
  in 
  the 
  monthly 
  means. 
  

  

  If, 
  after 
  all, 
  this 
  excessive 
  development 
  does 
  not 
  depend 
  so 
  much 
  upon 
  

   the 
  absolute 
  degree 
  of 
  heat 
  above 
  the 
  normal 
  condition 
  as 
  upon 
  the 
  

   absence 
  of 
  excessive 
  changes 
  at 
  the 
  periods 
  when 
  they 
  are 
  most 
  easily 
  

   effected, 
  then 
  a 
  careful 
  examination 
  and 
  comparison 
  of 
  the 
  monthly 
  

   means 
  ought 
  to 
  reveal 
  the 
  particular 
  months 
  or 
  periods 
  of 
  the 
  year 
  in 
  

   which 
  these 
  excessive 
  changes 
  are 
  most 
  likely 
  to 
  occur. 
  If 
  it 
  depends 
  

   Jiipon 
  the 
  sum 
  of 
  the 
  heat 
  — 
  that 
  is, 
  the 
  number 
  of 
  hours 
  they 
  are 
  ex- 
  

  

  