478 Mr. J. Murray on Oceanic Deposits examined 



61° 25' W. A red clay containing : — Much amorphous matter ; 

 many small white and yellow-coloured mineral particles ; three 

 small fragments of Globigerina and two pieces of a siliceous spine 

 were the only traces of organisms noticed. 



Sounding 59. 14th March, 1873. 1420 fathoms. Lat. 18° 40' N., long. 

 62° 56' "W. A Globigerina-ooze containing : — Many pelagic Fora- 

 minifera; Pteropods, pelagic Gasteropods, Heteropods, Coccoliths, 

 and Ehabdoliths ; a few mineral particles of a white colour ; a few 

 Eadiolaria and siliceous spines. 



Sounding 60. 15th March, 1873. 460 and 390 fathoms. North of 

 Calebra Island. A coral mud containing : — Many pelagic Forami- 

 nifera, Pteropods, Heteropods, small larval Gasteropods ; Echini- 

 spines ; a few Coccoliths ; a good many rather coarse mineral par- 

 ticles of white and black colour ; a good many siliceous spines and 

 Eadiolaria ; amorphous calcareous matter ; one cast of a Foraminifer 

 of a red colour. 



St. Thomas's to Bermuda. 



Station 24. 25th March, 1873. 390 and 625 fathoms. North of 

 Calebra Island. A coral mud containing : — Much amorphous cal- 

 careous matter ; a good many remains of pelagic Poraminif era, 

 Pteropods, surface Gasteropods, Coccoliths, and Ehabdoliths ; a 

 good many small white crystalline particles; one or two casts of 

 Foraminifera in a dark red substance. 



Sounding 61. 26th March, 1873. 3875 fathoms. Lat. 19° 41' N., long. 

 65° 7' "W. A blue mud (red on the top, then a layer of blue or slate- 

 colour, the lower layers of a grey colour) containing : — Much amor- 

 phous matter ; many very small crystalline or mineral particles ; a 

 good many broken pieces of pelagic Poraminif era ; Pteropods and 

 Heteropods ; a few Coccoliths and Ehabdoliths. The lower layers 

 appeared to contain more carbonate of lime than the upper ones. 



Sounding 62. 27th March, 1873. 2800 fathoms. Lat. 21° 26' N., long. 

 65° 16' W. A red clay containing: — Much amorphous matter; 

 very many fine mineral particles ; a few remains of pelagic Porami- 

 nif era, and one or two Coccoliths ; one or two manganese grains. 



Sounding 63. 28th March, 1873. 2960 fathoms. Lat. 22° 49' N., long. 

 65° 19' W. A red clay containing : — Much amorphous clayey 

 matter ; very many exceedingly fine mineral particles ; a few broken 

 remains of pelagic Poraminif era. 



Sounding 64. 29fch March, 1873. 2850 fathoms. Lat. 24° 39' K, long. 

 65° 25' W. A red clay containing : — Much amorphous clayey matter; 

 many exceedingly fine white mineral particles ; a few broken 

 remains of pelagic Poraminif era ; one or two manganese grains. 



