V2V2 
THE VOYAGE OF H.M.S. CHALLENGER. 
Station 329. 
Okoam.-'M.s rKoM 
Surface- N rrx 
Station 330. 
stinkers (rrocellaria gigantea), black night hawks (Procellaria xquinoctialis), mutton 
binls, prions {Prion turtur), and Thalassidromas were seen. 
Tristan da Cunha distant at noon, 1142 miles. Made good 165 miles. Amount of 
current 9 niilo.s, direction N. 15° W. 
Surface Organisms. — The following species are recorded from the surface at this 
Station : — 
Coi*Ki*oDA (Brady, Zool. pt. 23). Fishes (Gunther, Zool. pt. 78). 
Ccntropuges riohiceiis (Claus). Scopelus coccoi (Cocco). 
Scombresox saurus, (young). 
In addition, the note-books record : — Sagitta, Hyperids, and Eiipfiausia. 
Station 330 (Souuding 480), Rio de la Plata to Tristan da Cunha (see Chart 16 and 
Diagram 6). 
.March 8, 1876 ; lat. 37° 45' S., long. 33° 0' W. 
Temperature of air at noon, 67°‘3 ; mean for the day, 65°’7. 
Temperature of water : — 
Surface, . 
25 
fathoms 
50 
75 
>1 
100 
>> 
1-2.5 
L50 
♦ 1 
175 
200 
22-5 
»» 
2.50 
tl 
275 
300 
64-2 
400 fathoms, 
630 
500 
590 
600 „ 
57-0 
700 „ 
.56-2 
800 „ 
55-6 
900 
55-4 
1000 
.55-2 
1580 „ 
.53 0 
1780 
50-5 
1980 
48-0 
2180 „ 
460 
44-7 
Bottom, 
40-7 
38-7 
37-8 
37-5 
37-5 
37-5 
37-6 
37-5 
36-5 
35-3 
34-2 
32-7 
Density at 60° F. at surface, 1 ’02620 ; bottom, 1 ’02608. 
Depth, 2440 fathom.s ; deposit. Red Clay, containing 10’36 per cent, of carbonate of 
lime (see Murray and Renard, Deep-Sea Deposits Chall. Exp.). 
At 12.30 I’.M. got up steam. At 1.15 r.M. shortened and furled sails, and proceeded 
under steam. .\t 2 r.M. sounded in 2440 fathom.s. The sounding-tube had sunk about 
fifteen inches into the bottom, and brought up over two litres of clay, of which the lower 
layers liarl a blue rather than a red tinge and contained very little, if any, carbonate of 
lime. .\ worm-tube had a deposit of manganese in thein.side. Took serial temperatures. 
■\t 4.15 I'.M. completed observations and made sail. Birds as noted at the previous 
Station were seen. 
