﻿1875.] 
  

  

  Observations 
  made 
  in 
  Little 
  Namaqualand. 
  

  

  561 
  

  

  reductions 
  ; 
  and 
  I 
  fear 
  that 
  on 
  one 
  of 
  the 
  days 
  (April 
  20 
  or 
  22) 
  the 
  

   theodolite 
  must 
  have 
  been 
  slightly 
  disturbed 
  in 
  changing 
  the 
  sun-shade 
  

   after 
  the 
  observations 
  of 
  the 
  sun 
  and 
  before 
  the 
  observations 
  of 
  the 
  

   marks. 
  I 
  am 
  not, 
  however, 
  aware 
  of 
  any 
  reason 
  for 
  assuming 
  that 
  such 
  

   a 
  disturbance 
  actually 
  did 
  take 
  place, 
  and 
  I 
  have 
  taken 
  the 
  mean 
  of 
  the 
  

   two 
  determinations 
  as 
  the 
  true 
  result. 
  

  

  O 
  I 
  II 
  

  

  Variation 
  on 
  April 
  20 
  165 
  5 
  46 
  

  

  43 
  17 
  56 
  

  

  208 
  23 
  42 
  or 
  28° 
  23' 
  42" 
  

  

  Variation 
  on 
  April 
  22. 
  Kokerboom 
  183 
  36 
  21 
  

  

  24 
  43 
  26 
  

  

  208 
  19 
  47 
  or 
  28° 
  19' 
  47" 
  

  

  Chimney 
  (2) 
  . 
  . 
  165 
  5 
  46 
  

   43 
  14 
  7 
  

  

  208 
  19 
  53 
  or 
  28° 
  19' 
  53" 
  

  

  Chimney 
  (1) 
  . 
  . 
  166 
  31 
  20 
  

   41 
  46 
  54 
  

  

  208 
  18 
  14 
  or 
  28° 
  18' 
  14" 
  

  

  Variation, 
  April 
  22 
  28° 
  19' 
  18" 
  

  

  The 
  results 
  for 
  the 
  Ookiep 
  station 
  are 
  : 
  — 
  

  

  Variation 
  V= 
  28 
  21 
  30 
  

  

  Dip 
  D= 
  53 
  22 
  21 
  

  

  Horizontal 
  force 
  . 
  . 
  . 
  .X= 
  4*4252 
  

   Magnetic 
  moment 
  . 
  :m= 
  0-4262 
  

   Total 
  force 
  . 
  . 
  .F= 
  7'4171 
  

  

  Oeaxge-Kiyer 
  Station. 
  

  

  Approximate 
  longitude 
  l 
  h 
  12 
  m 
  56 
  s 
  

  

  Approximate 
  south 
  latitude 
  .... 
  28° 
  53' 
  7" 
  

  

  The 
  observations 
  were 
  made 
  near 
  New 
  Eaman's, 
  Msbetbath, 
  or 
  Schuyte 
  

   drift. 
  These 
  three 
  names 
  are 
  given 
  to 
  fix 
  the 
  particular 
  drift 
  to 
  which 
  

   reference 
  is 
  made. 
  It 
  was 
  a 
  narrow 
  gorge, 
  surrounded 
  by 
  mountains 
  of 
  

   some 
  considerable 
  height, 
  some 
  rising 
  to 
  3000 
  and 
  4000 
  feet. 
  The 
  height 
  

   of 
  the 
  station 
  above 
  the 
  sea 
  appeared, 
  from 
  barometrical 
  determinations, 
  

   to 
  be 
  about 
  780 
  feet. 
  A 
  mountain-pass, 
  of 
  about 
  750 
  feet, 
  separated 
  

   the 
  river 
  from 
  the 
  Bushman 
  flats. 
  These 
  flats, 
  in 
  this 
  neighbourhood, 
  

  

  2 
  it 
  2 
  

  

  