502 Mr. J. Murray on Oceanic Deposits examined 



fera ; Pteropocl and other shells ; a few Acanfhometrce and Diatom 

 remains. 



Sounding 233. 28th January, 1875. 2225 fathoms. Lat. 8° 0' N., 

 long. 121° 42' E. A blue mud with an upper red layer, contain- 

 ing : — Much amorphous clayey matter; many fine mineral particles 

 of a white, black, and green colour. A good many Diatoms and 

 Eadiolaria ; one or two small pieces of pelagic Foraininifera. 



Sounding 234. 8th February, 1875. 2050 fathoms. Lat. 5° 47' K, 

 long. 124° 1' E. A blue mud with an upper reddish tinge, con- 

 taining : — Amorphous clayey matter ; many fine and coarse minerals ; 

 a great many Diatom and Eadiolarian remains ; one or two broken 

 portions of pelagic Foraininifera ; a few manganese grains. 

 Dredge brought up some hardened lumps of the bottom : these were 



traversed by black streaks (manganese), and had imbedded in them some 



pieces of wood. 



Sounding 235. 10th February, 1875. 500 fathoms. Lat. 4° 33' N., 

 long. 127° 6' E. A grey ooze containing : — Very many pelagic 

 Foraminifera, Pteropods, and other surface shells ; many coarse 

 and fine mineral particles of a white, black, and green colour ; a few 

 pale white casts of the Eoraminifera. 

 The dredge brought up some large, flat, hardened pieces of the bottom. 



Sounding 236. 12th February, 1875. 2550 fathoms. Lat. 4° 19' N., 

 long. 130° 15' E. A red clay containing : — Much amorphous clayey 

 matter ; many very fine white mineral particles ; a good many Ea- 

 diolaria and Diatoms ; a few manganese grains. 

 The trawl brought up several pieces of pumice about the size of a 



hen's egg. 



Sounding 237. 16th February, 1875. 1675 fathoms. Lat. 2° 46' N., 

 long. 133° 58' E. A Globigerina-ooze containing : — Very many 

 pelagic Foraminifera, Coccoliths, and Ehabdoliths ; a great many 

 Eadiolaria and a few Diatom-remains ; amorphous clayey and cal- 

 careous matter and a few fine mineral particles. 



Sounding 238. 16th February, 1875. 2000 fathoms. Lat. 2° 56' N., 

 long. 134° 11' E. A Glohigeriiia-ooze of a red colour, containing : — 

 Many pelagic Foraminifera, Coccoliths, and Ehabdoliths ; much 

 clayey matter ; many fine mineral particles (pumice) ; a good many 

 Eadiolaria. 

 The trawl contained many small pieces of pumice from the size of a 



marble to that of a hen's egg. Some of these had a slight coating of 



manganese. 



Sounding 239. 22nd February, 1875. 2000 fathoms. Lat. 0° 39' S., 

 long. 138° 55' E. A blue mud containing : — Much amorphous 

 cla3^ey matter ; many fine mineral particles (pumice &c.) ; a good 

 many Eadiolaria ; a few broken pieces of pelagic Foraminifera. 



