68 .THE DEPTH AND MARINE DEPOSITS OF THE PACIFIC OCEAN. 
CALCIUM CARBONATE: 68.01 per cent, pelagic Foraminifera, with a few 
bottom-living forms (Rotalidz); the more porous shells are colored light 
brown by limonite. 
ResipuE: 31.99 per cent; the residue consists essentially of “ fine wash- 
ings,” nothing being left after careful decantation. 
Siliceous Organisms, 0 per cent. 
Minerals, 0 per cent. 
Fine Washings (31.99 per cent), brown clay, remarkably rich in 
minute manganese grains and earthy limonite, with a very few remains of 
siliceous organisms (Diatoms and Sponge spicules), and mineral particles 
much too minute for identification. 
No. 46. Station 4736, 23rd January, 1905. 
Lat. 19° 0.4’ S.; long. 125° 5.4’ W.; depth, 2289 fathoms. 
GLOBIGERINA OOZE: dark chocolate-brown, plastic and sticky in the 
wet state, but not very coherent when dried. 
CALCIUM CARBONATE: 50 per cent, pelagic Foraminifera, with a few 
bottom-living forms (Rotalidse) and a good many Fishes’ teeth. 
REsIDUE : 50 per cent: — 
Siliceous Organisms (traces), a very few Sponge spicules and Radiolaria. 
Minerals (traces), angular ; mean diameter 0.1 mm.; augite, plagioclase, 
magnetite, and a reddish product of decomposition, with a good many small, 
well-formed, elongated crystals of phillipsite with pyramidal terminal faces, and 
a few manganese grains. 
Fine Washings (50 per cent), chocolate-brown clay, the brown color 
being due to manganese oxide, with a few mineral particles and remnants of 
siliceous organisms. 
No. 47. Station 4525,* 25th January, 1905. 
Lat. 21° 36.1’S.; long. 131° 35.3’ W.; depth, 2123 fathoms. 
GLOBIGERINA OOZE: dark brown, with yellow patches, plastic when 
wet; forms when dried hard lumps crumbling under the action of water. 
CALCIUM CARBONATE: 65.90 per cent, pelagic Foraminifera, with a few 
bottom-living forms (Rotalidee). é 
ResipuE: 34.10 per cent : — 
Siliceous Organisms (small traces), very few Sponge spicules and 
Radiolaria. 
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