72 THE DEPTH AND MARINE DEPOSITS OF THE PACIFIC OCEAN. 
substance, accompanied by a few manganese grains and one or two clusters 
of phillipsite. 
Fine Washings (34.50 per cent), very flocculent, brown, clayey matter, 
with many siliceous remains, and minute manganese grains. 
No. 55. Station 4537,* 13th February, 1905. 
Lat. 4° 50.5’ S.; long. 120° 45.7’ W.; depth, 2350 fathoms. 
GLOBIGERINA OOZE: light gray, incoherent, many of the Foraminifera 
being visible to the naked eye; very little material available. 
CALCIUM CARBONATE: 79 per cent, pelagic Foraminifera and_ their 
fragments, with a few bottom-living forms (Rotalidz). 
REsIDUE: 21 per cent: — 
Stliceous Organisms (traces), Radiolaria, Diatoms, and Sponge spicules. 
Minerals (traces), many small manganese grains. 
Fine Washings (21 per cent), brown clay, very flocculent, with frag- 
ments of siliceous organisms and minute manganese grains; other mineral 
particles much too small for identification. 
No. 56. Station 4538,* 14th February, 1905. 
Lat. 2° 14’ S.; long. 118° 55.1’ W.; depth, 2291 fathoms. 
GLOBIGERINA OOZE: light gray, chalky, and incoherent, fine-grained. 
CALCIUM CARBONATE: 65.90 per cent, pelagic Foraminifera, many of the 
shells more or less fragmentary, with a few bottom-living forms (Rotalida), 
and one or two Kchinoid spines. 
ResipuE: 34.10 per cent : — 
Siliceous Organisms (traces), Diatoms, fragments of Radiolaria, and 
Sponge spicules. 
Minerals, 0 per cent. 
Fine Washings (34.10 per cent), light reddish-brown clayey matter, 
with remains of siliceous organisms, and a few very small mineral particles. 
No. 57. Station 4742, 15th February, 1906. 
Lat. 0° 3.4’ N.; long. 117° 15.8’ W.; depth, 2320 fathoms. 
GLOBIGERINA OOZE: light gray, nearly white, fine-grained, and of low 
specific gravity when dried. 
CaLcIuM CARBONATE: 63.62 per cent, pelagic Foraminifera and their 
comminuted fragments. The trawl brought up some curious calcareous 
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