118 THE DEPTH AND MARINE DEPOSITS OF THE PACIFIC OCEAN. 
Station 79, 7th October, 1899. 
Lat. 16° 10’ S.; long. 146° 23’ W.; depth, 252 fathoms. 
CORAL SAND: very little material; coarse-grained and quite incoherent ; 
some of the larger shell fragments blackened by manganese; Coral frag- 
ments, Mollusc shells and their fragments, Echinoid-spine fragments, Polyzoa, 
Serpula, pelagic and bottom-living Foraminifera, Pteropods, Aleyonarian . 
spicules, Tunicate spicules; Sponge spicules, Radiolaria; grains of felspar, 
the largest attaining a diameter of 0.5 mm. 
Station 80, 7th October, 1899. 
Lat. 16° 11.5’ S.; long. 146° 25’ W.; depth, 491 fathoms. 
CORAL SAND: very little material ; coarse-grained, incoherent, white ; con- 
tains Coral fragments, Polyzoa, Mollusc-shell fragments, with small Lamel- 
libranchs and Gasteropods (Plewrotoma), Echinoid spines, Aleyonarian spicules, 
otoliths, pelagic and bottom-living Foraminifera, Heteropods (Adlania), Pter- 
opods; grains of felspar. 
Station 81, 7th October, 1899. 
Lat. 15° 54.5’ S.; long. 146° 20’ W.; depth, 677 fathoms. 
CORAL SAND: fine-grained, incoherent ; some of the particles blackened 
by manganese, fragments of Corals, Polyzoa, Echinoid spines, Gasteropods, 
Pteropods, pelagic and bottom-living Foraminifera, Ostracodes, Alcyonarian 
and Tunicate spicules; siliceous Sponge spicules; one or two small grains 
of felspar. 
Station 82, 7th October, 1899. 
Lat. 15° 42’ S.; long. 146° 20’ W.; depth, 675 fathoms. 
PTEROPOD OOZE: fine-grained, incoherent, cream colored; appears 
washed ; contains Pteropods, Heteropods, pelagic and bottom-living Fora- 
minifera, Ostracodes, otoliths, Echinoid spines, Coral fragments, fragments 
of Mollusc shells, with small Lamellibranchs and Gasteropods (Pleurotoma), 
Tunicate spicules, coccoliths, and rhabdoliths. 
Station 83, 7th October, 1899. 
Lat. 15° 34’ S.; long. 146° 26’ W.; depth, 333 fathoms. 
CORAL SAND (?): so little material that it is impossible to state with cer- 
tainty the character of the deposit a situ; one or two pelagic Foraminifera 
