﻿1874.] 
  ' 
  Challenger' 
  Soundings 
  in 
  the 
  Southern 
  Sea. 
  

  

  41 
  

  

  about 
  2700 
  fathoms. 
  The 
  general 
  concurrence 
  of 
  so 
  many 
  observations 
  

   would 
  go 
  far 
  to 
  prove, 
  what 
  seems 
  now 
  to 
  stand, 
  indeed, 
  in 
  the 
  position 
  of 
  

   an 
  ascertained 
  fact, 
  that 
  wherever 
  the 
  depth 
  increases 
  from 
  about 
  2200 
  

   to 
  2600 
  fathoms, 
  the 
  modern 
  Chalk 
  formation 
  of 
  the 
  Atlantic 
  and 
  of 
  

   other 
  oceans 
  passes 
  into 
  a 
  clay. 
  

  

  No. 
  of 
  

   Station. 
  

  

  Nature 
  of 
  the 
  Bottom. 
  

  

  G-lob. 
  Ooze. 
  

  

  Grey 
  Ooze. 
  

  

  Eed 
  Clay. 
  

  

  I. 
  

  

  n. 
  

  

  in. 
  

  

  VI. 
  

  

  i. 
  

  

  2. 
  

  

  4. 
  

  

  5. 
  

  

  6. 
  

  

  7. 
  

  

  8. 
  

  

  9. 
  

   10. 
  

   11. 
  

   12. 
  

   13. 
  

   14. 
  

   15. 
  

   16. 
  

   17. 
  

   18. 
  

   19. 
  

   20. 
  

   21. 
  

   22. 
  

   23. 
  

  

  25. 
  

   26. 
  

   27. 
  

   28. 
  

   29. 
  

   30. 
  

   31. 
  

   32. 
  

  

  From 
  Cape 
  Finisterre 
  to 
  Teneriffie. 
  

   1125 
  

   1975 
  

   470 
  

   1800 
  

   1000 
  

   1525 
  

  

  From 
  Teneriffe 
  to 
  St. 
  Thomas 
  

   1890 
  

   1945 
  

   2220 
  

  

  2025 
  

   1900 
  

   1950 
  

  

  1420 
  

   450 
  

  

  From 
  St. 
  Thomas 
  to 
  Bermudas 
  

   3875 
  

   2800 
  

   2960 
  

  

  2475 
  

   2250 
  

   1820 
  

  

  2740 
  

   2950 
  

   2750 
  

   2800 
  

   3150 
  

   2720 
  

   2575 
  

  

  2325 
  

   2435 
  

   2385 
  

   2675 
  

   3000 
  

   2975 
  

   3025 
  

  

  2850 
  

   2700 
  

   2600 
  

  

  