THE DEPTH AND MARINE DEPOSITS OF THE PACIFIC OCEAN. 71 



Fine Washings (82 per cent), dark-brown flocculent clay, characterized 

 by a great abundance of minute crystals of phillipsite, with one or two 

 minute manganese grains. 



No. 52. Station 4534,* 9th February, 1905. 

 Lat. 13° 51' S. ; long. 126° 53.5' W. ; depth, 2185 fathoms. 



GLOBIGERINA OOZE : light brown, slightly coherent, not sticky. 



Calcium carbonate : 72.72 per cent, pelagic Foraminifera, with a few 

 bottom-living forms [Rotalia). 



Residue : 27.28 per cent ; no clastic minerals nor siliceous organisms 

 observed ; the residue consists, of chocolate-brown flocculent clayey matter, 

 containing numerous very small crystals of phillipsite and a few minute 

 manganese grains. 



No. 53. Station 4535,* 10th February, 1905. 

 Lat. 11° 20' S. ; long. 125° 1.3' W. ; depth, 2215 fathoms. 



GLOBIGERINA OOZE : light brown, slightly coherent when dried. 



Calcium carbonate : 77.26 per cent, pelagic Foraminifera, many of the 

 shells being more or less fragmentary. 

 Residue : 22.74 per cent : — 



Siliceous Organisms (traces), fragments of arenaceous Foraminifera and 

 of Radiolaria, with Diatoms, and a few Sponge spicules. 



Minerak (traces), one or two manganese grains only. 



Fine Washings (22.74 per cent), brown flocculent clay, containing 

 many minute manganese grains and other mineral particles much too small 

 to be identified, and fragments of siliceous organisms. 



No. 54. Station 4740, 11th February, 1905. 

 Lat. 9° 2.1' S.; long. 123° 20.1' W. ; depth, 2422 fathoms. 



GLOBIGERINA OOZE : light brown, slightly coherent. 



Calcium carbonate: 65 per cent, pelagic Foraminifera and their 

 fragments, with a few bottom-living forms (Rotalidoe). 

 Residue : 35 per cent, dark brown : — 



Siliceous Organisms (0.25 per cent), Radiolaria, Diatoms, Sponge spicules, 

 and arenaceous Foraminifera. 



Minerals (0.25 per cent), very much decomposed, yellow, palagonitic 



