96 THE DEPTH AND MARINE DEPOSITS OF THE PACIFIC OCEAN. 



Minerals (2 per cent), angular, mean diameter 0.08 mm., felspar, 

 obsidian, pumice, isolated crystals of phillipsite, augite, small manganese 

 grains. 



Fine Washings (19.5 per cent), amorphous clayey matter, with minute 

 mineral particles, and fragments of siliceous organisms. 



No. 40. Station 146, 31st October, 1899. 

 Lat. 18° 36' S. ; long. 139° 14' W. ; depth, 1725 fathoms. 



RED CLAY : very little material ; brown, clayey, and coherent. 



Calcium carbonate : 30 per cent, fragments of pelagic and bottom- 

 living Foraminifera, coccoliths, small Fish teeth. 

 Residue : 70 per cent, brown, flocculent : — 



Siliceotis Organisms (1 per cent), Radiolaria, Sponge spicules. 

 Minerals (10 per cent), angular, mean diameter 0.08 mm., obsidian, 

 felspar, magnetite, and manganese grains. 



Fine Washings (59 per cent), amorphous clayey matter, with minute 

 mineral particles, and fragments of siliceous organisms. 



No. 41. Station 151, 31st October, 1899. 

 Lat. 19° 27' S. ; long. 138° 47' W. ; depth, 1907 fathoms. 



GLOBIGERINA OOZE: light brown or cream color, slightly coherent, 

 finely granular. 



Calcium carbonate: 85 per cent, pelagic Foraminifera with large pro- 

 portion of young forms, one or two blackened by manganese, bottom-living 

 Foraminifera, Ostracodcs, coccoliths, rhabdoliths. 

 Residue : 15 per cent, brown, flocculent : — 



Siliceous Organisms (2 per cent), Radiolaria, Sponge spicules. Diatoms. 

 Minerals (1 per cent), mean diameter 0.06 mm., angular and rounded, 

 a few particles of pumice, volcanic glass, and manganese grains. 

 Fine Washings (12 per cent), amorphous clayey matter. 



No. 42. Station 152, 31st October, 1899. 

 Lat. 19° 35' S. ; long. 139° 13' W. ; depth, 2335 fathoms. 



RED CLAY or GLOBIGERINA OOZE: dark brown or chocolate color 

 with yellow patches, coherent, clayey, granular to the touch. 



Calcium carbonate : 33.6 per cent, pelagic and bottom-living Foram- 

 inifera, Fishes' teeth, coccoliths, and rhabdoliths observed, but the greater 



