82 
THE VOYAGE OF H.M.S. CHALLENGER. 
B. Stations 1 to 24, North Atlantic, from the Canaries to the West Indies. 
Station 3. — February 18, 1873. Lat. 25° 45' N., long. 20° 12' W. Depth, 1525 
fathoms ; bottom temperature, 2° ‘2 C. ; rock. 
A small quantity of fine shelly sand, with many sponge-spicules. The 
Foraminifera were chiefly Globigerince (notably Globigerina rubra) and 
Pulvinulince, with one or two specimens of Candeina nitida and Pullenia 
obliquiloculata. 
Station 5. — February 21,1873. Lat. 24° 20' N., long. 24° 28' W. Depth, 2740 
fathoms; bottom temperature, 2°'0 C. ; red clay. 
The small percentage that remained after washing 1 contained nothing 
beyond the ordinary constituents of a Globigerina ooze — the genera 
Globigerina, Pulvinulina, Sphceroidina, and Pullenia, with a few Nonionince. 
Station 9. — February 26, 1873. Lat. 23° 23' N., long. 35° 10' W. Depth, 3150 
fathoms ; bottom temperature, 1 0, 9 C. ; red clay. 
Left scarcely any residue after washing. The Foraminifera were of the same 
general character as those of Station 5, with the addition of a few arenaceous 
forms. There were also a few Radiolaria. 
Station 23. — March 15, 1873. Off Sombrero Island, West Indies. Depth, 450 
fathoms ; Globigerina ooze. 
Contained all the common species of Globigerina (notably Globigerina rubra), 
the pelagic Pulvinulince (represented principally by Pulvinulina menardii), 
Sphceroidina and Pullenia. Pulvinulina elegans and Pulvinulina paupercita, 
two or three species of Truncatulina, the genera Textularia, Gaudryina, and 
Miliolina, with fragments of Rhabdammina, Hyperammina, and one or two 
other arenaceous types, supply the chief additional Foraminifera. A 
number of Radiolaria were also noticed. 
Station 24. — March 25, 1873. Off Culebra Island, North of St. Thomas’s, West 
Indies. Depth, 390 fathoms ; mud. 
White material, with large numbers of pteropod shells. Very rich in 
Foraminifera, particularly in the larger forms of Nodosarince and Textularince, 
1 Before microscopic examination the material was in each case washed on a sieve of fine wire gauze, 120 meshes 
to the linear inch, which retained all particles of greater diameter than inch (0 - 126 millim.). The impalpable matter 
separated in this way was generally found to consist of rock-detritus, or the finely comminuted remains of calcareous or 
siliceous organisms, Radiolaria, Diatomacese, and Coccoliths being often present to a greater or less extent, as well as 
Foraminifera, hut of the latter only minute examples of species represented by adult specimens remaining in the sieve. 
The “residue after washing,” frequently mentioned, means therefore the portion of the material available for examination 
after the removal of the “ mud.” 
