THE DEPTH AND MARINE DEPOSITS OF THE PACIFIC OCEAN. 83 



No. 5. Station 7, 1st September, 1899. 

 Lat. 18° 19' N. ; long. 134° 57' W. ; depth, 2881 fathoms. 



RED CLAY : light brown, with darker patches. 



Calcium carbonate: 1.05 per cent, a few teeth of Fishes. 

 Residue : 98.95 per cent, brown: — 



Siliceous Organisms (1 per cent). Sponge spicules, Radiolaria, arenaceous 

 Foraminifera. 



Minerals (1 per cent), mostly angular, mean diameter 0.1 mm., felspar, 

 glassy particles, grains of manganese, and magnetite. 



Fine Washhigs (96.95 per cent), amorphous clayey matter, with minute 

 mineral particles, etc. 



No. 6. Station 11, 3rd September, 1899. 

 Lat. 14° 38' N. ; long. 136° 44' W. ; depth, 2646 fathoms. 



RED CLAY : dark brown, mottled with lighter-colored patches. 

 Calcium carbonate : 1 per cent, teeth of Fishes. 

 Residue : 99 per cent, brown : — 



Siliceous Organisms (2 per cent), Radiolaria, Sponge spicules, arenaceous 

 Foraminifera, Diatoms. 



Minerals (1 per cent), angular, mean diameter 0.08 mm., felspar, glassy 

 particles, augite, magnetite, grains of manganese, phillipsite. 



Fine Washings (96 per cent), amorphous clayey matter, with minute 

 mineral particles and fragments of siliceous organisms. 



No. 7. Station 12, 4th September, 1899. 

 Lat. 12° 7' N. ; long. 137° 18' W. ; depth, 2883 fathoms. 



RADIOLARIAN OOZE : light brown. 



Calcium carbonate : 1 per cent. Fishes' teeth. 

 Residue : 99 per cent, brown : — 



Siliceous Organisms (30 per cent), Radiolaria, Sponge spicules, Diatoms. 

 Minerals (2 per cent), angular, mean diameter 0.1 mm., glassy particles, 

 felspar, hornblende. 



Fine Washings (67 per cent), amorphous clayey matter, with minute 

 mineral particles and fragments of siliceous organisms. 



