THE DEPTH AND MARINE DEPOSITS OF THE PACIFIC OCEAN. 93 



Heteropods, Pteropods, Polyzoa, Echinoid spines, Ostracodes, otoliths, small 

 Gasteropods and Lamellibranchs, Tunicate spicules, coccoliths, rhabdoliths. 

 Residue : 70 per cent, black with greenish tinge, many coprolites : — 



Siliceous Organiams (3 per cent), arenaceous Foraminifera, Radiolaria, 

 Sponge spicules, Diatoms. 



Minerals (20 per cent), angular, mean diameter 0.1 mm., augite, olivine, 

 oligoclase, sanidine (?), volcanic glass, magnetite very abundant. 



Fine, Washings (47 per cent), amorphous clayey matter, with small 

 coprolites, mineral particles, and fragments of siliceous organisms. 



No. 32. Station 75, 5th October, 1899. 

 Lat. 16° 57' S. ; long. 147° 29' W. ; depth, 1592 fathoms. 

 GLOBIGERINA OOZE : grayish-brown, coherent, granular. 



Calcium carbonate : 40.75 per cent, pelagic and bottom-living Fora- 

 minifera, otoliths, Ostracodes, Echinoid spines. Coral fragments, coccoliths, 

 rhabdoliths. Tunicate spicules. 



Residue : 59.25 per cent, brown, flocculent, with black mineral 

 particles : — 



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

 Foraminifera, Diatoms. 



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

 olivine, plagioclase, magnetite, chloritic mineral. 



Fine Washings (47.25 per cent), amorphous clayey matter, with minute 

 mineral particles and fragments of siliceous organisms. 



No. 33. Station 94, 14th October, 1899. 

 Lat. 16° 57' S. ; long. 145° 49' W. ; depth, 1531 fathoms. 

 GLOBIGERINA OOZE : cream colored, slightly coherent. 



Calcium carbonate : 81.45 per cent, Foraminifera, — pelagic (including 

 a large proportion of young forms) and bottom-living, — Ostracodes, otoliths, 

 coccoliths, rhabdoliths. 



Residue : 18.55 per cent, brown, flocculent : — 



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

 casts, Diatoms. 



Minerals (1 per cent), mean diameter 0.06 mm., only one or two 

 particles of felspar and glass observed. 



Fine Washings (15.55 per cent), amorphous clayey matter, with 

 splinters of siliceous organisms and minute mineral particles. 



