THE DEPTH AND MARINE DEPOSITS OF THE PACIFIC OCEAN. 91 



living Foraminifera, coccoliths, rhabdoliths, Tunicate spicules, and small cal- 

 careous horseshoe-shaped bodies. 



Residue : 32.85 per cent, chocolate colored, flocculent : — 



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

 Foraminifera. 



Minerals (1 per cent), angular, mean diameter 0.07 mm., felspar, 

 magnetite, obsidian, and one twin crystal of phillipsite observed. 



Fine Washings (30.85 per cent), amorphous clayey matter, with small 

 mineral particles and fragments of siliceous organisms. 



No. 27. Station 63, 26th September, 1899. 

 Lat. 15° 42' S.; long. 148° 44' W. ; depth, 2247 fathoms. 



GLOBIGERINA OOZE : brownish-red, coherent, clayey. 



Calcium CAKBOisrATE : 56.9 per cent, pelagic and bottom-living Forami- 

 nifera (mostly small, some broken), coccoliths, rhabdoliths. 

 Residue : 43.1 per cent, chocolate brown, flocculent : — 



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

 Minerals (2 per cent), angular, mean diameter 0.1 mm., felspar, horn- 

 blende, obsidian, magnetite, small fragment of pumice 0.2 mm. in diameter, 

 manganese grains. 



Fine Washings (40.1 per cent), amorphous clayey matter, with minute 

 mineral particles, etc. 



No. 28. Station 67, 27th September, 1899. 

 Lat. 16° 32' S. ; long. 148° 40' W.; depth, 2363 fathoms. 



GLOBIGERINA OOZE : grayish-brown, coherent, clayey. 



Calcium carbonate : 39.6 per cent, Foraminifera, — pelagic (mostly frag- 

 mentary) and bottom-living, — Ostracodes, Echinoid spines, small Fish teeth, 

 rhabdoliths, coccoliths. 



Residue : 60.4 per cent, brown, flocculent : — 



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

 Foraminifera. 



Minerals (5 per cent), angular, mean diameter 0.08 mm., plagioclase, 

 augite, obsidian, magnetite. 



Fine Washings (53.4 per cent), amorphous clayey matter, with minute 

 mineral particles, etc. 



