1102 
THE VOYAGE OF H.M.S. CHALLENGER. 
Statiox 292. 
OrTiA.M^M!! from 
•SORFACE-X m. 
Station 293. 
At 1.15 P.M. shortened and furled sails, and proceeded under steam. At 2 p.m. 
sounded in IGOO fiitlioms. The sounding-tube had sunk several inches into the deposit 
and brought up half a litre of the ooze, which was of a brown colour, but on shaking up 
in water the Foraminifera separated from the red amorphous matter and settled as a 
white layer at the bottom of the glass. There were a great many particles of palagonite 
and other volcanic matter, as well as numerous small particles of peroxide of manganese, 
many of the Foraminifera being studded with grains of this substance. The association 
of the basic volcanic materials with the manganese in this Globigerina Ooze is suggestive 
of the origin of the manganese. Put trawl over and veered 2100 fathoms. Obtained 
seriiil teraj>eratures down to the bottom. The carbonic acid was determined in water 
from the surface, and amounted to 36 ’6 milligrammes per litre. At 6 p.m. commenced 
hea^^ng in trawl, but at 7.40 p.m. the trawl-rope carried away, and the trawl, tow-nets, 
and 1600 fathoms of line were lost. Made all plain sail. The usual birds were 
noticed, and one of the mutton birds was caught. 
Valparaiso distant at noon, 2022 miles. Made good 162 miles. Amount of current 
13 miles, direction N. 13“ E. 
Surface Organisms. — The following are recorded in the note-books from the surface 
at this Station : — Pendinium tripos, Globigerina, Pulvinulina, Acanthometrae and other 
Radiolaria, Diphyes and other Siphonophorae, Sagitta, Tomopteris, Cypridina, Copilia 
and other Copepods, small shells, Atlanta, Pteropods, Appendicular ia, and Doliolum. 
The following species are recorded from the surface of the South Pacific in October 
1875, the exact locality not being noted : — 
Amphipoda (Stebbing, Zool. pt. 67). 
Pronoe capito, Guerin. Brachyscelus latipes, n.sp. 
Paraprono'e clausi, n.sp. „ hovallii, n.sp. 
Station 293 (Sounding 438), Tahiti to Valparaiso (see Chart 38 and Diagram 20). 
November 1, 1875 ; lat. 39“ 4' S., long. 105“ 5' W. 
Temperature of air at noon. 
57“'8 ; mean for the day, 56“'4. 
Temj»c*niture of water: — 
Snrface, . . . , 
5.3-7 
125 fathoms, . 
46-4 
2.^ fatboms, 
52-9 
1.50 „ . . 
45-4 
W 
51-7 
175 „ . . 
44-6 
7T) „ 
50-1 
200 
44-1 
100 
48-3 
„ 
43-8 
