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  ANNUAL 
  REPORT 
  SMITHSONIAN 
  INSTITUTION, 
  1922. 
  

  

  | 
  first 
  day 
  to 
  3,200 
  fath- 
  

  

  g 
  oms 
  found 
  at 
  one 
  spot 
  

  

  3 
  near 
  the 
  end 
  of 
  the 
  

  

  voyage. 
  About 
  1,200 
  

   ~ 
  miles 
  west 
  of 
  the 
  Straits 
  

   k 
  of 
  Gibraltar 
  they 
  ran 
  

   5 
  over 
  a 
  comparatively 
  

   2 
  shallow 
  region, 
  about 
  

   ~ 
  500 
  miles 
  wide, 
  where 
  

   * 
  the 
  depths 
  averaged 
  

   | 
  less 
  than 
  1,000 
  fathoms. 
  

  

  1 
  If 
  we 
  could 
  imagine 
  

   a 
  this 
  part 
  elevated 
  as 
  

   t 
  much 
  as 
  the 
  plateau 
  at 
  

   | 
  the 
  Grand 
  Canyon 
  has 
  

   « 
  risen 
  out 
  of 
  the 
  sea, 
  

   u 
  we 
  might 
  see 
  again 
  

   | 
  Plato's 
  lost 
  island 
  of 
  

   1 
  . 
  Atlantis. 
  Wonderful 
  

   bq 
  S> 
  pinnacles 
  were 
  found, 
  

   P 
  a? 
  the 
  like 
  of 
  which 
  are 
  

   S£ 
  hardly 
  duplicated 
  in 
  

   "3 
  £ 
  abruptness 
  by 
  moun- 
  

   •| 
  tain 
  ranges 
  anywhere 
  

   ** 
  on 
  land. 
  

  

  q 
  

  

  This 
  new 
  and 
  power- 
  

   ■a 
  ful 
  method 
  of 
  making 
  

   ■S 
  soundings 
  was 
  seized 
  

   | 
  upon 
  immediately 
  for 
  

   § 
  scientific 
  purposes. 
  

   a 
  Great 
  interest 
  had 
  been 
  

  

  3 
  

  

  © 
  growing 
  in 
  recent 
  years 
  

   s 
  in 
  volcanoes 
  and 
  earth- 
  

   quakes, 
  their 
  causes 
  and 
  

   effects, 
  and 
  the 
  means 
  

   which 
  may 
  be 
  found 
  to 
  

   foretell 
  them. 
  Those 
  

   who 
  remember 
  the 
  San 
  

   Francisco 
  earthquake 
  

   will 
  not 
  be 
  surprised 
  

   to 
  know 
  that 
  roughly 
  

   parallel 
  to 
  our 
  western 
  

  

  coast 
  there 
  lies 
  a 
  region 
  liable 
  to 
  disturbance 
  from 
  earthquakes 
  

  

  and 
  volcanoes. 
  

  

  \*< 
  

  

  