Station 348 . 
^252 the voyage of h.m.s, challenger. 
Station 348 (Sounding 498), Ascension Island to St. Vincent (see Chart 12). 
April 9, 1876 ; lat. 3° 10' N., long. 14° 51' W. 
Temperature of air at noon, 84°'8 ‘, mean for the day, 82 1. 
Temperature of water : — 
Surface, 
10 fathoms. 
20 
11 
30 
11 
40 
11 
50 
11 
60 
11 
70 
11 
80 
11 
90 
11 
100 
11 
110 
11 
120 
11 
130 
11 
140 
11 
150 
11 
160 
11 
170 
11 
180 
11 
84-0 
84-0 
82-2 
70-8 
62-2 
59-5 
58-2 
57-6 
57-0 
56-5 
56-1 
55-7 
55-3 
54-9 
54-5 
54-1 
530 
52-0 
50-9 
190 fathoms, 
200 „ 
225 „ 
250 „ 
275 „ 
300 „ 
400 „ 
500 
600 
700 „ 
800 „ 
900 „ 
1000 „ 
1100 „ 
1200 
1300 
1400 „ 
1500 
49-7 
49-1 
47-8 
46-4 
45-1 
43-8 
41-2 
40-4 
40-0 
39-8 
39-6 
39-3 
390 
38-7 
38-4 
38-1 
37-8 
37-6 
Density at 60° F. : — 
Surface, 
. 1-02578 
200 fathoms, 
25 fathoms, . 
. 1-02599 
300 
50 „ . . 
. 1-02629 
385 
100 „ 
. 1-02627 
800 
. 1-02589 
. 1-02602 
. 1-02580 
. 1-02565 
Depth (2450 fathoms) ; deposit, Globigerina Ooze, containing 83'13 per cent, of 
carbonate of lime (see Murray and Renard, Deep-Sea Deposits Chall. Exp.). 
At 5.40 A.M. stopped to dredge and obtain temperatures in the same position as 
Station 102 of August 21, 1873, about 430 miles W.S.W. of Cape Palmas. At 6 a.m. 
put over dredge, veering 3000 fathoms. Took serial temperatures down to 1500 fathoms. 
At 1 1 A.M. commenced heaving in dredge, which came up at 2 p.m. with very few 
specimens, but the dredge and attached tow-net contained over eleven litres of the deposit. 
At 2.10 P.M. proceeded under steam. One Thahussidroma was seen. 
Cape Venlc distant at noon, 714 miles. Made good 110 miles. Amount of current 
G miles, direction N. 39'* W. 
