482 Mr. J. Murray on Oceanic Deposits examined 



tides — quartz, mica, aud a greeu miueral (serpeutiue ?) ; a good mauy 

 pelagic Poraminifera, Coccoliths, aud Ehabdoliths. 



Sounding 89. 27th May, 1873. 2650 fathoms. Lat. 34° 50' N., loug. 

 63° 59' W. A red clay containing : — Much amorphous clayey mat- 

 ter ; many very fine mineral particles ; a good many pelagic Pora- 

 minifera and their broken parts ; Coccoliths and Ehabdoliths. 



Sounding 90. 27th May, 1873. 2500 fathoms. Lat. 33° 20' N., long. 

 64° 37' W. A red clay, much the same as the last, but containing 

 perhaps rather more carbonate-of-lime organisms. 



Sounding 92. 29th May, 1873. 1325 fathoms. A coral-mud contain- 

 ing:— -Much amorphous calcareous matter; pelagic Poraminifera, 

 Pteropod aud Heteropod shells ; Coccoliths and Ehabdoliths ; broken 

 pieces of coral, Polyzoa, &c. ; a few siliceous spines and Eadiolaria. 



Souuding 93. 29th May, 1873. 1075 fathoms. A coral-mud, much 

 the same as the above, but having a few white and green mineral 

 particles. 



Sounding 94. 30th May, 1873. 1250 fathoms. A coral-mud contain- 

 ing : — Much amorphous calcareous matter ; many pelagic Porarni- 

 nifera, Pteropods, Heteropods, Coccoliths, and Ehabdoliths ; a few 

 siliceous spines and Eadiolaria ; some white and green mineral par- 

 ticles (mica). 



Sounding 95. 30th May, 1873. 1575 fathoms. A coral-mud contain- 

 ing : — Many pelagic and other Poraruinifera, Pteropods, Heteropods, 

 and surface G-asteropods, Coccoliths, and Ehabdoliths ; amorphous 

 calcareous matter ; a few siliceous spines ; a few quartz and other 

 mineral particles. 



Sounding 96. 13th June, 1873. 1500 fathoms. Lat. 32° 37' N., long. 

 64° 21' "W. A coral-mud containing ; — Many pelagic and other 

 Poraminifera, Pteropods, and Heteropods ; Coccoliths and Ehabdo- 

 liths; much amorphous calcareous matter; a few Eadiolaria and 

 siliceous spines ; a few green mineral particles. 



Sounding 97. 14th June, 1873. 2360 fathoms. Lat. 32° 54' N., long. 

 63° 22' W. A grey clay containing : — Much amorphous clayey and 

 calcareous matter ; a good many exceedingly fine mineral particles ; 

 a good many pelagic Poraminifera and Coccoliths ; one or two Ea- 

 diolarians. 



Sounding 98. 16th June, 1873. 2575 fathoms. Lat. 34° 28' N., long. 

 58° 56' W. A red clay containing : — Much amorphous clayey mat- 

 ter ; many fine mineral particles, and a few rather coarse ones ; a 

 good many pelagic Poraminifera and their broken-down parts ; one 

 or two grains of manganese. 



Sounding 99. 17th June, 1873. 2850 fathoms. Lat. 34° 54' N. s long. 

 56° 38' ~W. A red clay containing : — Amorphous clayey matter ; 



