﻿450 
  

  

  ON 
  THE 
  RELATIVE 
  HORIZONTAL 
  INTENSITIES 
  

  

  TABLE 
  No. 
  VIII. 
  

  

  Observations 
  at 
  Philadelphia. 
  — 
  Second 
  Series. 
  

  

  o 
  

  

  Cm 
  

  

  o 
  

  

  B 
  . 
  

  

  c3 
  

  

  h 
  

   O 
  

  

  

  a 
  

   'So 
  

  

  

  j 
  

  

  EH 
  a 
  

  

  03 
  

  

  B 
  

  

  g 
  g 
  

   Eh 
  o 
  

  

  fTen 
  

  

  dions 
  

   ed 
  for 
  

   ature. 
  

  

  

  

  W 
  s 
  

  

  •- 
  B 
  

  

  6 
  

  

  ■3? 
  

   ■^ 
  £ 
  Z 
  

  

  o 
  

  

  O 
  

   Ch 
  

  

  o 
  

  

  o 
  

  

  o 
  

  

  g 
  

  

  tt 
  

  

  H 
  

  

  

  c 
  r- 
  

  

  '3 
  

   a 
  

  

  o 
  

  

  6n 
  

  

  O 
  ji 
  

   C 
  7Z± 
  

  

  s 
  o 
  

   HO 
  

  

  ° 
  33 
  o 
  o 
  

  

  Eh°S£ 
  

  

  Weather 
  and 
  

   Remarks. 
  

  

  Observer, 
  &c. 
  

  

  Z 
  

  

  a 
  

  

  (3 
  

  

  

  

  

  

  

  

  

  

  

  

  Q 
  

  

  

  Hours. 
  

  

  Mins. 
  

  

  Sec. 
  

  

  Fah.° 
  

  

  o 
  

  

  z; 
  

  

  Sees. 
  

  

  Sees. 
  

  

  

  

  

  

  1835. 
  

  

  

  

  

  

  

  

  

  

  1 
  

  

  A 
  

  

  Sept. 
  

  

  19 
  

  

  P. 
  M. 
  5.4 
  

  

  18 
  

  

  00.2 
  

  

  63.2 
  

  

  300 
  36.01 
  

  

  36.02 
  

  

  Cloudy. 
  E. 
  Nimbus. 
  

  

  Bache. 
  

  

  2 
  

  

  .'£ 
  

  

  a 
  

  

  30 
  

  

  " 
  3.5 
  

  

  18 
  

  

  00.6 
  

  

  63.9 
  300 
  36.02 
  

  

  36.05 
  

  

  Cloudy. 
  WindN.W. 
  

  

  Place 
  of 
  

  

  3 
  

  

  ££ 
  

  

  tt 
  

  

  it 
  

  

  " 
  3.8 
  

  

  15 
  

  

  00.4 
  

  

  63.1 
  1 
  260 
  36.02 
  

  

  36.05 
  

  

  Cumulus. 
  

  

  Observation. 
  

  

  4 
  

  

  " 
  

  

  Oct. 
  

  

  5 
  

  

  " 
  4.2 
  

  

  18 
  

  

  01.4 
  

  

  72.0 
  1 
  300 
  36.05 
  

  

  36.04 
  

  

  Cloudy. 
  N. 
  E. 
  wind. 
  

  

  Small 
  

  

  5 
  

  

  

  a 
  

  

  tt 
  

  

  " 
  4.6 
  

  

  18 
  

  

  01.2 
  

  

  71.2 
  300, 
  36.04 
  

  

  36.04 
  

  

  Cumulo-stratus. 
  

  

  Magnetic 
  

  

  6 
  

  

  it 
  

  

  tt 
  

  

  tt 
  

  

  " 
  6.5 
  

  

  14 
  

  

  58.0 
  

  

  33.7 
  250 
  35.92 
  

  

  36.07 
  

  

  In 
  ice. 
  

  

  Observatory 
  

  

  7 
  

  

  tt 
  

  

  tt 
  

  

  it 
  

  

  '•' 
  7.0 
  

  

  17 
  

  

  56.4 
  

  

  33.7 
  300 
  35.88 
  

  

  36.03 
  

  

  u 
  

  

  in 
  rear 
  of 
  

  

  8 
  

  

  it 
  

  

  tt 
  

  

  tt 
  

  

  " 
  8.7 
  

  

  18 
  

  

  00.4 
  

  

  61.7 
  300 
  36.01 
  

  

  3G.05 
  

  

  u 
  

  

  Prof. 
  Bache's 
  

  

  9 
  

  

  it 
  

  

  a 
  

  

  It 
  

  

  " 
  9.0 
  

  

  18 
  

  

  01.0 
  

  

  62.9 
  

  

  300 
  36.03 
  

  

  36.06 
  

  

  n 
  

  

  dwelling, 
  

  

  10 
  

  

  ^ 
  

  

  " 
  

  

  tt 
  

  

  " 
  10.5 
  

  

  15 
  

  

  03.6 
  

  

  91.2 
  

  

  250 
  36.14 
  

  

  36.05 
  

  

  Heated 
  by 
  lamps. 
  

  

  Chcsnut 
  St. 
  

  

  11 
  

  

  tt 
  

  

  » 
  

  

  it 
  

  

  « 
  11.2 
  

  

  18 
  

  

  05.0 
  

  

  88.5 
  

  

  300 
  36.17 
  

  

  36.09 
  

  

  '•' 
  

  

  near 
  Schu'kll 
  

  

  12 
  

  

  tt 
  

  

  tt 
  

  

  17 
  

  

  « 
  3.9 
  

  

  12 
  

  

  02.4 
  

  

  77.2 
  

  

  200 
  36.12 
  

  

  36.09 
  

  

  Cloudy. 
  S. 
  E. 
  

  

  Sixth. 
  

  

  13 
  

  

  c 
  

  

  Sept. 
  

  

  18 
  

  

  P. 
  M. 
  5.3 
  

  

  16 
  

  

  05.2 
  

  

  69.4 
  

  

  300 
  32.17 
  

  

  32.17 
  

  

  Clear. 
  S. 
  E. 
  Cirro- 
  

  

  Bache. 
  

  

  14 
  

  

  u 
  

  

  u 
  

  

  It 
  

  

  " 
  5.6 
  

  

  16 
  

  

  05.6 
  

  

  68.1 
  

  

  300 
  32.19 
  

  

  32.19 
  

  

  Cumulus 
  — 
  rare. 
  

  

  Place 
  

  

  15 
  

  

  a 
  

  

  u 
  

  

  19 
  

  

  '•' 
  3.9 
  

  

  16 
  

  

  06.4 
  

  

  69.5 
  

  

  300 
  32.21 
  

  

  32.21 
  

  

  Cloudy. 
  Nimbus. 
  

  

  of 
  

  

  16 
  

  

  tt 
  

  

  (i 
  

  

  tc 
  

  

  " 
  4.4 
  

  

  16 
  

  

  05.4 
  

  

  69.0 
  

  

  300 
  32.18 
  

  

  32,18 
  

  

  Wind 
  E. 
  

  

  Observation 
  

  

  17 
  

  

  a 
  

  

  a 
  

  

  u 
  

  

  « 
  5.0 
  

  

  13 
  

  

  24.4 
  

  

  68.0 
  

  

  250 
  32.18 
  

  

  32.18 
  

  

  " 
  

  

  as 
  above. 
  

  

  18 
  

  

  B 
  

  

  Oct. 
  

  

  5 
  

  

  P. 
  M. 
  3.3 
  

  

  20 
  

  

  26.0 
  

  

  74.0 
  

  

  250 
  49.04 
  

  

  48.97 
  

  

  Cloudy. 
  N. 
  E. 
  

  

  Bache. 
  

  

  19 
  

  

  ,|. 
  

  

  a 
  

  

  i: 
  3.6 
  

  

  20 
  

  

  27.2 
  

  

  73.4 
  

  

  250 
  49.09 
  

  

  49.03 
  

  

  

  Same 
  Place 
  of 
  

   Observation. 
  

  

  Mean 
  Time 
  c 
  

  

  f 
  T 
  

  

  en 
  Oscillatic 
  

  

  ins 
  at 
  7 
  

  

  0° 
  Fah. 
  by 
  A, 
  3G.053 
  in 
  

  

  Semi-arcs 
  of 
  4 
  a 
  2°. 
  Total 
  No. 
  

  

  of 
  Vibe. 
  3350. 
  

  

  

  

  tt 
  

  

  a 
  

  

  

  

  C, 
  32.166 
  

   B 
  (3) 
  49.000 
  

  

  it 
  

  

  a 
  

  

  6 
  a 
  2°. 
  " 
  

  

  1450. 
  

   500. 
  

  

  TABLE 
  No. 
  IX. 
  

  

  Observations 
  at 
  West 
  Point. 
  — 
  Second 
  Series. 
  

  

  a 
  

  

  ! 
  c 
  . 
  

  

  1 
  X 
  +j 
  

  

  a 
  c 
  

   • 
  % 
  

  

  6 
  

  

  z; 
  

  

  o 
  

  

  

  

  .2 
  <u 
  

  

  •-Z; 
  

  

  tfl 
  *^ 
  

  

  o 
  

  

  > 
  

  

  M 
  

   <D 
  

  

  Si 
  

  

  o 
  

   a 
  

  

  a 
  

  

  o 
  

  

  ^ 
  feD 
  

  

  =« 
  B 
  

  

  g 
  

  

  r- 
  3 
  

  

  ? 
  3 
  

  

  Mean 
  Tem- 
  

   perature. 
  

  

  71 
  

   O 
  

  

  '3 
  

  

  6 
  

  

  o 
  

   6 
  

  

  Eh 
  O 
  

  

  o 
  _d 
  

  

  c 
  ~ 
  

  

  a 
  o 
  

  

  .3 
  ^ 
  

  

  HO 
  

  

  Time 
  of 
  Ten 
  

   Oscillations 
  

   corrected 
  for 
  

   Temperature. 
  

  

  Weather, 
  &c. 
  

  

  Observer, 
  &c. 
  

  

  Hours. 
  

  

  Mins. 
  

  

  Sees. 
  

  

  Fah.° 
  

  

  Sees. 
  

  

  Sees. 
  

  

  l 
  

  

  2 
  

   3 
  

  

  A 
  

  

  tt 
  

   It 
  

  

  Sept. 
  7 
  

  

  tt 
  << 
  

  

  " 
  8 
  

  

  P. 
  M. 
  5.0 
  

  

  " 
  5.3 
  

  

  A. 
  M. 
  10.1 
  

  

  18 
  

   18 
  

   18 
  

  

  48.4 
  

   47.6 
  

   44.7 
  

  

  69.9 
  

   66.8 
  

   64.0 
  

  

  300 
  

  

  it 
  

  

  tt 
  

  

  37.61 
  

   37.59 
  

   37.49 
  

  

  37.61 
  

   37.60 
  

   37.52 
  

  

  Clear. 
  Wind 
  N. 
  

  

  ofW. 
  

   Clear. 
  W. 
  

  

  Bache 
  and 
  

   Courtenay. 
  

   Same 
  locality 
  as 
  

   in 
  former 
  Ob- 
  

   servations. 
  

  

  4 
  

   5 
  

   6 
  

  

  C 
  

  

  it 
  

   tt 
  

  

  Sept. 
  8 
  

  

  it 
  a 
  

  

  i< 
  " 
  

  

  A.M. 
  10.9 
  

   " 
  11.2 
  

   " 
  11.6 
  

  

  16 
  

   16 
  

   16 
  

  

  44.6 
  

   37.6 
  

   44.6 
  

  

  70.3 
  

   69.5 
  

   71.9 
  

  

  302 
  33.27 
  

   300 
  33.25 
  

   302 
  J 
  33.27 
  

  

  33.27 
  

   33.25 
  

   33.27 
  

  

  Clear. 
  W. 
  

  

  M« 
  

  

  ;an 
  Tin 
  

   ti 
  

  

  le 
  of 
  Ten 
  

  

  Oscillations 
  

   tt 
  

  

  at 
  70° 
  Fah. 
  by 
  

   tt 
  

  

  A, 
  37.577 
  in 
  Semi-arcs 
  fr. 
  4 
  to 
  2°. 
  No. 
  of 
  Oscillations 
  900. 
  

   C, 
  33.263 
  6 
  to 
  2°. 
  " 
  904. 
  

  

  