474 Mr. J. Murray on Oceanic Deposits examined 



colour; some pelagic Foraminifera aud Coccoliths. Oue or two 

 greeu casts of the Forarainifera remained after treatmeut with acid. 



Sounding 6. 14th January, 1873. Lat. 38° 9' N., long. 9° 43' W. 

 1380 fathoms. A blue mud containing : — Amorphous matter ; many 

 fine mineral particles, white and green ; a few pelagic Foraminifera 

 and many Coccoliths ; a few green casts of the Foraminifera. 



Sounding 7. 14th January, 1873. Lat. 37° 56' N., long. 10° 8' W. 

 1800 fathoms. A blue mud containing : — Much amorphous clayey 

 matter ; many small mineral particles ; a few pelagic Foraminifera, 

 Coccoliths, and Ehabdoliths. 



Sounding 8. 15th January, 1873. Lat. 37° 2' N., long. 9° 23' W. 

 1000 fathoms. A blue mud containing : — Much amorphous matter ; 

 many fine mineral particles, white and green ; some pelagic and 

 other Foraminifera and Coccoliths ; many green casts (glauconitic) 

 of the Foraminifera after treatment with acid. 



Soundings 9, 10, & 11. Lat. 36° 58' N., long. 9° 14' W., and lat. 37° 2' K, 

 long. 9° 14' W. 525, 900, and 600 fathoms respectively. Gave a 

 blue mud, as in No. 3. 



Gibraltar to Madeira. 



Sounding 12. 28th January, 1873. Lat. 35° 47' K, long. 8° 23' W. 

 1090 fathoms. A Globigerina-ooze containing : — Very many pelagic 

 Foraminifera, Coccoliths, and Ehabdoliths ; a few white mineral 

 particles ; one or two Eadiolarian remains ; amorphous calcareous 

 matter. 



Sounding 14. 30th January, 1873. Lat. 36° 23' N., long. 11° 18' "W. 

 1525 fathoms. A Globigerina-ooze containing : — Very many pelagic 

 Foraminifera, Coccoliths, and Ehabdoliths ; a few white, red, and 

 black mineral particles ; one or two Eadiolaria ; amorphous cal- 

 careous matter. 



Sounding 16. 1st February, 1873. Lat. 34° 4' N., long. 14° 18' W. 

 2250 fathoms. A white Globigerina-ooze containing : — Many pelagic 

 Foraminifera, Coccoliths, and Ehabdoliths ; a few small white crys- 

 talline particles ; one or two Eadiolaria ; some amorphous calcareous 

 matter. 



Sounding 17. 2nd February, 1873. Lat. 32° 43' N., long. 15° 52' W. 

 2225 fathoms. A yellow Globigerina-ooze containing : — Many pela- 

 gic Foraminifera, Coccoliths, and Ehabdoliths ; a good many mineral 

 particles (Olivinite) ; a few manganese grains ; a few Eadiolaria. 



Sounding 18. 2nd February, 1873. Off Madeira Island. 670 fathoms. 

 A sand composed of broken pieces of coral, Lepas-v&lyes, Echini- 

 spines, pelagic and other Foraminifera (these were all dead, and 

 had a slight coating of the black oxide of manganese) ; many olivine 

 and other mineral particles. 



