58 THE DEPTH AND MARINE DEPOSITS OF THE PACIFIC OCEAN. 
CALCIUM CARBONATE: 11.12 per cent, pelagic Foraminifera of small size 
and generally broken. 
ResipuE: 88.88 per cent: — 
Siliceous Organisms (traces), a few Sponge spicules and arenaceous 
Foraminifera. 
Minerals (traces); most of the mineral particles pass off with the 
“fine washings,” those of appreciable size (exceeding 0.05 mm. in diameter) 
being very few in number, and consisting of plagioclase, augite, and man- 
ganese grains. 
Fine Washings (88.88 per cent), chocolate-brown flocculent clay, with 
a few very minute mineral particles too small (0.005 mm. in diameter) to 
be determined. 
No. 29. Station 4699, 25th December, 1904. 
Lat. 21° 39.5’ S.; long. 104° 29.8’ W.; depth, 2168 fathoms. 
GLOBIGERINA OOZE: plastic and sticky, smooth to the touch; the 
sample is partly dark brown, partly light yellowish-brown; dries into hard 
lumps; might be called Red Clay. 
. CALCIUM CARBONATE: 33.02 per cent, pelagic Foraminifera, mostly 
broken, with a few small transparent bottom-living Foraminifera. 
Resipue: 66.98 per cent : — 
Siliceous Organisms (traces), one or two Sponge spicules. Radiolaria 
and arenaceous Foraminifera are mentioned in the preliminary report, but 
were not observed in the sample examined. 
Minerals (traces); the few minerals of appreciable size have a mean 
diameter of 0.3 mm., and are angular, but most of the particles are too small 
to be determined; the larger and more abundant particles are palagonite, 
while plagioclase (not identified) and magnetite are also present; the most 
characteristic mineral is phillipsite, of which there are a few, very small, iso- 
lated crystals; manganese oxide is diffused in particles of microscopic size ; 
there are also a few flakes of some greenish chloritic mineral. 
Fine Washings (66.98 per cent), chocolate-brown flocculent clay, with 
a few minute mineral particles. 
No. 30. Station 4701, 26th December, 1904. 
Lat. 19° 11.5’ S.; long. 102° 24’ W.; depth, 2265 fathoms. 
RED CLAY: dark chocolate-brown, plastic and sticky, forming when dried 
hard lumps that give a shining brown streak. 
