20 
THE VOYAGE OF H.M.S. CHALLENGER. 
IV. Th> ■ Surface Water of the South Atlantic — continued. 
1 Somber 
of 
Simple. 
D.tc. 
tf 
III 
III 
|* 
Position. 
Depth In 
Knt horns 
from 
which 
Sumplo 
was 
obtained. 
Temperature 
(Centigrade) 
of Water. 
Hydrometer. 
Specific Gravity. 
( Distilled Water at 4” C. = 1.) 
Latitude. 
Longi- 
tude. 
At the 
Depth 
D. 
During 
Observa- 
tion. 
Number 
of the 
Instru- 
ment. 
Reading 
Observed at 
t° C. 
Reduced to its Value at 
15°-5C C. 
T” C. 
I 
D 
T 
t 
R 
St 
3 15-56 
S x 
8. 
w. 
1876. 
o / 
O t 
O 
O 
1451 
Feb. 
7 
50 41 
56 20 
Surface. 
7'8 
9-3 
00 V . 
36 
1-02637 
1-02517 
1-02658 
+•1452 
8 
317 
48 37 
55 17 
8'2 
9 9 
36 
1-02635 
1-02524 
1-02660 
14 tf 0 
9 
47 50 
56 9 
10-3 
107 
36 
1-02634 
1 02537 
1-02641 
1 461 
10 
45 1 
56 9 
111 
11-7 
31-5 
1-02608 
1-02529 
1-02620 
+•1462 
11 
3 is 
42 32 
56 29 
14-2 
13-7 
24-5 
1-02564 
1 -02524 
1 -02553 
1471 
12 
41 39 
54 48 
15-3 
16-3 
21 
1-02538 
1-02555 
1 -02561 
1473 
13 
39 33 
54 20 
12-2 
13-4 
25 
1 -02568 
1-02522 
1-02593 
1474 
13 
38 54 
54 17 
18-6 
18-6 
8 
1-02459 
1-02532 
1-02459 
+*1475 
• 1 
14 
320 
37 17 
53 52 
> > 
197 
17-8 
tt 
9-5 
1-02470 
1-02523 
1-02425 
1482 
15 
35 4 
65 6 
21-1 
21-1 
001 II . 
50 
1-01655 
1-01794 
1-01655 
1483 
15 
35 1 
55 18 
216 
21-6 
0011. 
63-5 
101215 
1-01367 
1-01215 
1484 
99 
26 
35 12 
53 7 
f t 
22-0 
22-3 
00 IV . 
44 
1-02116 
1-02288 
1-02125 
1485 
27 
35 25 
52 35 
23-0 
23-6 
00 V . 
8 
1-02444 
1-02654 
1-02461 
+*1486 
28 
323 
35 39 
50 47 
23 0 
23-6 
11 
1-02460 
1-02670 
1-02477 
•141*5 
tt 
29 
324 
36 9 
48 22 
219 
22-0 
6-5 
1-02440 
1-02603 
1-02443 
+141*7 
Mnr. 
1 
36 0 
47 50 
217 
21 '5 
15-5 
1-02492 
1-02644 
1-02488 
+*1404* 
ft 
2 
325 
36 44 
46 16 
21-5 
22-4 
17-5 
1-02499 
1-02675 
1-02523 
1508 
3 
36 55 
44 50 
20 0 
21-5 
00 IV . 
84-5 
1-02341 
1-02491 
1-02382 
1510 
M 
4 
36 56 
42 50 
21-0 
21-5 
00 V . 
14 
1-02481 
1-02633 
1-02495 
1512 
6 
37 34 
41 51 
20-6 
21-1 
9 
10 
1 -02462 
1-02601 
1-02475 
1513 
It 
6 
37 38 
39 16 
17-5 
18-8 
14-5 
1-02493 
1-02571 
1-02526 
1514 
ft 
7 
37 31 
36 27 
18-4 
187 
21 
1-02530 
1 02606 
1-02540 
1519 
tt 
8 
37 45 
3.3 39 
17-9 
18-5 
24-5 
1-02549 
1-02620 
1-02565 
+•1521 
1 1 
9 
331 
37 47 
30 20 
18 0 
187 
23-5 
1-02544 
1-02620 
1-02568 
+*1530 
tf 
10 
332 
37 29 
27 31 
17-8 
18-6 
21 
1-02531 
1-02604 
1-02551 
1534 
tt 
11 
36 30 
26 11 
17-5 
17-5 
22 
1-02540 
1-02585 
1 02540 
15 5 
tt 
12 
35 52 
24 12 
20 0 
20-3 
13 
1-02481 
1 -02598 
1-02490 
1536 
tt 
13 
35 36 
20 52 
197 
207 
14 
1-02484 
1-02612 
1-02511 
+*15 l 5 
tt 
14 
334 
35 45 
18 31 
20-3 
20-8 
13 
1-02473 
1-02604 
1-02486 
1543 
M 
15 
34 9 
15 46 
ft 
21 7 
22 3 
tt 
10 
1-02459 
1-02633 
1-02476 
+•1549 
tt 
16 
335 
32 24 
13 5 
23 0 
23 3 
11-5 
1-02464 
1-02666 
1-02473 
1558 
tt 
17 
... 
30 21 
13 13 
If 
24 4 
24-0 
12 
1 -02462 
1-02684 
1-02450 
1559 
tt 
18 
27 43 
13 13 
24 4 
24 5 
11 
1-02457 
1 -02693 
1 -02460 
+*1568 
tt 
19 
337 
24 38 
1.3 36 
25 0 
25-1 
10 
1 -02450 
1-02704 
1 -02453 
1573 
tt 
20 
28 27 
13 51 
t t 
25 1 
257 
11 
1-02456 
1-02710 
1 -02456 
+1574 
tt 
21 
838 
21 15 
14 2 
24 7 
24 9 
19-5 
1 -02504 
1 -02752 
1-02510 
1581 
1 1 
22 
19 65 
13 56 
ft 
24 7 
25 0 
18-5 
1-02498 
1-02749 
1 -02507 
+•1582 
ft 
23 
339 
17 26 
13 52 
24 4 
24 -e 
22 
1-02518 
1 -02775 
1-02524 
1590 
tf 
24 
14 59 
13 42 
251 
25 3 
17-5 
1-02492 
1-02752 
1-02498 
1590 
99 
25 
... 
12 29 
13 44 
1 1 
25 9 
26 1 
5-5 
1 -02422 
1-02706 
1-02428 
1608 
tf 
26 
• •• 
10 6 
13 44 
tt 
267 
26 7 
5 
1-02418 
1 -02721 
1-02418 
*1617 
99 
27 
343 
8 3 
14 27 
•• 
27 1 
26-8 
00 IV . 
95 
1-02382 
1-02688 
1-02373 
1610 
April 
3 
34 4 
7 54 
14 28 
tt 
27 8 
27 4 
87 
1 -02334 
1-02658 
1 -02320 
t*MW 
• 9 
4 
345 
5 45 
14 25 
ft 
28 2 
28 0 
78 
1-02284 
1-02627 
1-02278 
1620 
99 
5 
4 22 
14 34 
tt 
27 9 
287 
72 
1 02251 
1 -02594 
1 -02257 
f+*1630 
M 
6 
346 
2 42 
14 41 
ft 
28 2 
28-2 
76-5 
1 -02275 
1 -02624 
1 -02275 
1640 
99 
7 
847 
0 15 
14 25 
99 
27 8 
27-7 
82 
1 -02306 
1-02639 
1 -02303 
a 
$ 
■a . 
£— * CO 
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(-> J 2 
c3 c/J 
ss »-* 
A . 
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