496 Mr. J. Murray on Oceanic Deposits examined 



Many internal casts of the Foraurinifera remained after treatment with 



acid. These were green and grey coloured. The smaller chambers were 



frequently green, while the larger ones were white or grey coloured. 



24th June, 1874. 400 fathoms. A blue mud containing : — Very many 



small sandy particles, as quartz, mica, &c. ; amorphous clayey 



matter ; many pelagic Foraurinifera and a few Coccoliths ; no Eadio- 



larians and no casts of the foraminifera noticed. 



24th June, 1874. 150 and 140 fathoms. The dredge contained a blue 

 mud, containing : — Amorphous clayey matter ; many small rounded 

 green and black particles (glauconite), as on the Agulhas Bank; 

 many pelagic Foraminifera, a few pale internal green casts of which 

 remained after treatment with acid. 



24th and 25th June, 1874. Off D'Urville Island, New Zealand, in 75, 

 49, 39, 40, and 32 fathoms. All gave a blue mud containing :— 

 Many sandy particles ; amorphous matter ; portions of Echinoderms ; 

 shells ; shore forms of Foraminifera &c. 



Wellington, New Zealand, to Fiji Islands. 



Sounding 204. 8th July, 1874. 1100 fathoms. Lat. 40° 28' S., long. 

 177° 43' E. A blue mud, with a thin red top layer, containing : — 

 Amorphous matter ; many fine and coarse sandy particles, as quartz, 

 pumice, mica, &c. ; a few pelagic Foraminifera and Coccoliths ; a 

 few siliceous spines. 



Sounding 205. 10th July, 1874. 700 fathoms. Lat. 37° 34' S., long. 

 179° 22' E. A blue mud, with a thin red upper layer, containing : — 

 Amorphous clayey matter ; many fine and coarse sandy particles, as 

 quartz, pumice, &c. ; a few pelagic Foraminifera and Coccoliths. 



Soundings 206 and 206 a. 14th July, 1874. 520-600 fathoms. Off 

 Kermadec Island. Traces of a grey mud came up on the sounding- 

 tube. This contained a few pelagic Foraminifera and many sandy 

 particles ; the dredge brought up some very large pieces of pumice 

 and some other pieces of volcanic rock. 



Sounding 207. 15th July, 1874. 600 fathoms. Lat, 28° 33' S., long. 

 177° 50' W. No bottom in the sounding-tube. 

 The dredge brought up many pieces of pumicestone. 



Sounding 208. 17th July, 1874. 2900 fathoms. Lat. 25° 5' S., long. 

 172° 5Q' E. A red clay containing :■ — Much amorphous clayey 

 matter ; many fine white mineral particles and a few larger pieces 

 of pumice ; one or two portions of Eadiolaria ; a few manganese 

 grains. 

 No trace of carbonate of lime in this sounding. The fine mineral 



particles appeared to be broken-down pieces of pumice. 



Sounding 208 a. 22nd July, 1874. 18 fathoms. Inside the reef, Tonga- 





