ee = lr 
MUSEUM OF COMPARATIVE ZOOLOGY. AT 
Discorbina sp. Cristellaria cultrata 
Truncatulina sp. Vertebralina striata 
Polytrema rubra Articulina conico-articulata 
Carpenteria sp- Bulimina marginata 
Orbiculina adunca Nodosaria costulata 
Orbitolites marginalis 
Residue, 12.94 per cent, light brown, consists of Minerals [3.00], m. di. 
0.1 mm., quartz, hornblende, magnetite, mica, olivine, and a few glassy frag- 
ments. Siliceous organisms [3.00], Sponge spicules, Diatoms, and a few casts. 
Fine washings (6.94), argillaceous matter, fine mineral particles, and fragments 
of siliceous organisms. 
Station 112.-- W. of Navassa Bank, 19 Dec., 1878. Depth, 1050 fathoms. 
Surf. temp. 82°. Bot. temp. 393°. A light brown Globigerina ooze, slightly 
coherent, pulverulent, granular ; dries into lumps, which break easily between the 
fingers. 
Carbonate of Calcium, 62.38 per cent, consists of Lamellibranch, Pteropod, and 
Heteropod shells, coccoliths and rhabdoliths, and the following Foraminifera: — 
Globigerina bulloides P. menardii, var. fimbriata 
G. rubra P. micheliniana 
G. equilateralis P. canariensis 
G. dubia Pullenia obliquiloculata 
G. hirsuta Biloculina depressa 
G. sacculifera B. sphera 
G. (Orbulina) universa Cassidulina sp. 
Spheroidina dehiscens Webbina clavata 
Candeina nitida Truncatulina lobatula 
Pulcinulina menardit Uvigerina sp. 
P. menardii, var. tumida 
Residue, 37.62 per cent, red, consists of Minerals [15.00], m. di. 0.07 mm., 
(angular) felspars, quartz, hornblende, mica, magnetite, many glassy fragments. 
Siliceous organisms {4.00 |, Sponge spicules, Radiolarians, and a few casts. Fine 
washings {18.62}, argillaceous matter, fine mineral particles, and fragments of 
siliceous organisms. 
Station 117.— Lat. 17° 47’ 20” N. Long. 67° 3’ 20” W. Off Porto Rico. 
Depth, 874 fathoms. Surf. temp. 823°. Bot. temp. 40°. A coral mud or Ptero- 
pod ooze, slight coherent, granular. Also, a small quantity of larger material, 
which appears to have been washed from the dredge, consisting of Gasteropod, 
Lamellibranch, Ostracode, Pteropod, and Heteropod shells, Echinoderm frag- 
ments, Coral, Polyzoa, and Serpula tubes. 
Carbonate of Calcium, 70.66 per cent, consists of Pteropods, Heteropods, frag- 
