1082 
THE VOYAGE OF H.M.S. CHALLENGER, 
Sr.\nox 
Oftr.AMSVS FBOM 
.SURFACm-NCTS, 
Static.'* 283. 
At 7 A.M. observed Tubuai Island lying nearly due east, at a distance of 30 miles. 
At 1.30 p.M. shortened and furled sails, and proceeded under steam to sound. At 2 p.m. 
.sounded in 2450 fathoms. Obtained serial temperatures down to 1500 fathoms. At 
5 P.M. completed observations, and at 5.30 p.m. made sail. 
Valparaiso distant at noon, 41G7 miles. Made good 81 miles. Amount of current 
7 miles, direction S. 
Surface Org ani sms. — The following species are recorded from the surface in the 
neighbourhood of this Station : — 
O 
Radiolaria (Haeckel, Zool. pt. 40). 
Dicrayiastnim clichotomu-m, Haeckel. 
S’thoconvs trochus, Haeckel. 
Stichopterium virgineum, Haeckel. 
Pelagic Hemiptera (White, Zool. pt. 19). 
Halohates sericeus, Eschscholtz. 
Pteropoda (Pelseneer, Zool, pt. 65). 
Clio {Hyalocylix) striata (Rang). 
In addition, the following are recorded in the note-books: — Ceratium {FeridiniurrC) 
tripos, Coccospheres, Rhabdospheres, Globigerina, Hastigerina, Infusoria, Siphonophorse, 
Sagitta, Alciopa, Annelid larvae, Cypridina, CoryesBus, Copilia, Saphirina, and other 
Copepods, Stomatopod larvae, small shells {lanthina ?), Salpa, Appendicular ia, and 
small fishes. 
Station 283 (Sounding 428), Tahiti to Valparaiso (see Chart 38 and Diagram 19). 
October 9, 1875 ; lat. 26° 9' S., long. 145° 17' W. 
Temperature of air at noon, 68°'3 ; mean for the day, 66°‘0. 
Temperature of water : — 
Surface, . 
25 fathoms, 
50 
»> 
75 
II 
100 
II 
125 
II 
150 
II 
175 
II 
200 
II 
noK 
II 
2.50 
II 
275 
• 1 
300 
II 
o o 
68-5 
400 fathoms, . 
42-2 
68-2 
500 „ 
40-3 
68-0 
600 „ 
39-0 
66-5 
700 „ 
380 
64-6 
800 „ 
37-3 
G2-8 
900 „ 
36-7 
60-3 
1000 „ 
36-3 
57-5 
1100 „ 
36-0 
54-8 
1200 „ 
35-8 
52-0 
1.300 „ 
35-6 
49-2 
1400 „ 
35-4 
46-8 
1500 „ 
35-4 
45-4 
Bottom, 
35-4 
