THE DEPTH AND MARINE DEPOSITS OF THE PACIFIC OCEAN. 
Lagena alveolata, Brady. 
“ — exsculpta, Brady. 
“gracilis, Will. 
«  feildeniana, Brady. 
Polymorphina angusta, Egger (?). 
Pulvinulina wmbonata, Rss. 
ih pauperata, P. & J. 
Rotalia brackhiana, Kar. 
i soldanii, d’Orb. 
Globigerina dubia, Egger. 
43 
Uvigerina brunnensis, Karrer. 4: rubra, d’Orb. 
“ asperula, Czjzek. H inflata, WV’ Orb. 
ie var. ampullacea, Brady. nS sacculifera, Brady. 
6 tenuistriata, Rss. ue conglobata, Brady. 
Truncatulina ungeriana (d’Orb.). " bulloides, d’Orb. 
4 akneriana (@Orb.). 2 x var. triloba, Rss. 
“ wuellerstorfi (Schw.). e equilateralis, Brady. 
Anomalina ammonoides (Rss.). vs pachyderma (Khrenb.) (?). 
Pulvinulina menardii (d’Orb.). Orbulina universa, d’Orb. 
6 ee var. fimbriata, Brady. ete | OT0say Longe 
te tumida, Brady. Pullenia obliquiloculata, P. & J. 
a micheliniana (d’Orb.). a quinqueloba, Rss. 
canartensis (d’Orb.). if spheroides (d’Orb.). 
& karstent (Rss. ). Nonionina umbilicatula (Montag.). 
4g exigua, Brady. « pompilioides (F. & M.). 
a crassa (d’Orb.). 
No. 4. Station 4639, 6th November, 1904. 
Lat. 0° 4’S.; long. 87° 39.5’ W.; depth, 1418 fathoms. 
GLOBIGERINA OOZE: gray, plastic, drying into hard lumps; no mac- 
roscopic elements. 
CALCIUM CARBONATE: 55.57 per cent, present in two forms: (1) as shells 
of Foraminifera belonging to the genera Globigerina and Pulvinulina, and (2) 
as microscopic particles due probably to the mechanical destruction of 
similar shells; these form a fine mud easily washed away, so that the liquid 
containing them effervesces readily with acid. . 
Resipue: 44.43 per cent :— 
Siliceous Orgasms (0.5 per cent); these form the greater part of the 
heavier parts of the residue. They are represented by a great variety of 
Radiolaria in a fine state of preservation, by Sponge spicules, and by 
Diatoms. 
Minerals (traces); they can be estimated only as traces, as they are 
present with the siliceous organisms in the proportion of one mineral parti- 
cle to every ten organisms. They are angular, and the mean diameter is 
0.05 mm. Pale augite is the principal constituent, and is accompanied by a 
very little magnetite and a few shapeless flakes of some kind of green 
chlorite. 
