88 THE DEPTH AND MARINE DEPOSITS OF THE PACIFIC OCEAN. 
No. 19. Station 31, 19th September, 1899. 
Lat. 12° 20’ 8.; long. 144° 15’ W.; depth, 2700 fathoms. 
RED CLAY: dark chocolate colored, coherent. 
CALCIUM CARBONATE: 8 per cent, pelagic and bottom-living Forami- 
nifera (mostly fragmentary), Fishes’ teeth, coccoliths. 
ResipvuE: 92 per cent, chocolate colored : — 
Siliceous Organisms (1 per cent), Sponge spicules, Radiolaria, arenaceous 
Foraminifera. 
Minerals (5 per cent), angular, mean diameter 0.1 mm., phillipsite 
(abundant, in isolated crystals, and in aggregations), manganese grains, mag- 
netite, palagonite, plagioclase, augite. 
Fine Washings (86 per cent), amorphous clayey matter, with many 
minute phillipsite crystals, and other mineral particles. 
No. 20. Station 32, 20th September, 1899. 
Lat. 18° 37’ S.; long. 145° 42’ W.; depth, 2451 fathoms. 
RED CLAY: dark chocolate colored, coherent. Manganese nodule one 
inch by half an inch. 
CALCIUM CARBONATE: 21.4 per cent, fragments of pelagic and bottom- 
living Foraminifera, Echinoid spines, Fish teeth, coccoliths, and small cal- 
careous horseshoe-shaped bodies. 
ResipuzE: 78.6 per cent, chocolate colored : — 
Siliceous Organisms (1 per cent), Sponge spicules, arenaceous Fora- 
minifera. 
Minerals (10 per cent), angular and rounded, mean diameter 0.1 mm., 
phillipsite (in individuals, twins, stellate, and subspherical groups, the last 
mentioned 1 mm. in maximum diameter), palagonite, decomposed olivine, 
decomposed plagioclase, augite, manganese grains, magnetite, and a small 
cosmic spherule, 0.03 mm. in diameter. 
Fine Washings (67.6 per cent), amorphous clayey matter, with small 
phillipsite crystals, etc. 
No. 21. Station 33, 20th September, 1899. 
Lat. 14° 10’ S.; long. 146° 10’ W.; depth, 2527 fathoms. 
RED CLAY: very dark chocolate color, almost black, coherent. 
CALCIUM CARBONATE: 38.5 per cent, bottom-living Foraminifera and 
minute fragments of pelagic Foraminifera. 
