SUMMARY OF RESULTS. 
1083 
Density at 60° F. : — 
Sw 
Surface, . 
. 1-02633 
200 fathoms, 
. 1-02595 
25 fathoms. 
. 1-02632 
300 
. 1-02561 
50 „ 
. 1-02617 
400 „ 
. 1-02538 
75 „ 
100 „ 
. 1-02617 
. 1-02617 
Bottom, 
. 1-02583 
Depth, 2075 fathoms; deposit, Globigerina Ooze, containing 46‘61 per cent, of 
carbonate of lime (see Murray and Eenard, Deep-Sea Deposits Chall. Exp.). 
At 8 A.M. got up steam. At 9 a.m. shortened and furled sails. At 10 a.m. sounded 
in 2075 fathoms. Nearly a foot of the deposit came up in the tube, the upper surface 
being a light yellow Globigerina Ooze ; passing down the tube the ooze became gradually 
darker, till at the bottom there was a dark chocolate coloured clay containing rounded 
pellets of manganese and many yellow crystals of phillipsite. Obtained serial temperatures 
down to 1500 fathoms. At 12.55 p.m. completed observations and made sail. A large 
albatross [Diomedea exulans), large black or brown petrels, another petrel of a lighter 
colour, and live or six apparently land-birds, like plovers, were seen. 
Distance at noon from Valparaiso, 3854 miles; from Oparo Island, 101 miles; from 
Lancaster or Neilson Reef, about 70 miles. Made good 161 miles. Amount of current 
23 miles, direction N. 41° E. 
Surface Organisms. — The following are recorded in the note-books from the 
surface at this Station : — Peridinium, Pyrocystis, Ethmodiscus and other Diatoms, 
Coccospheres, Rhabdospheres, Globigerina, Acanthoraetrse, Polycystinse, and other 
Radiolaria, Infusoria, Siphonophorae, Sagitta, Alciopa, Tomopteris, Cypridina, Copilia, 
Saphirina, and other Copepods, Evadne, Euphausia, Lucifer, small Lamellibranch 
shells, Salpa, Appendicularia. 
Station 284 (Sounding 429), Tahiti to Valparaiso (see Chart 38 and Diagram 19). 
October 11, 1875 ; lat. 28° 22' S., long. 141° 22' W. 
Temperature of air at noon, 
67°'8 ; mean for the day, 66°‘5. 
Temperature of water : — 
Surface, .... 
68-0 
150 fathoms. 
59-0 
25 fathoms. 
67-4 
175 „ ... 
56-8 
50 „ . . . 
66-6 
. 200 „ ... 
54-6 
75 „ . . . 
65-0 
225 „ ... 
52-5 
100 „ . . . 
63-2 
250 „ ... 
50-2 
125 „ . . . 
61-0 
275 „ ... 
48-1 
\ 
Station 28'3. 
Organisms from 
Surface-Yets. 
Station 284. 
