874 
THE VOYAGE OF H.M.S. CHALLENGEE. 
Station 224. Station 224 (Sounding 362), Admiralty Islands to Yokohama (see Chart 31 and 
Diagram 16). 
March 21, 
1875 ; lat. 7° 45' 
N., long. 
144° 20' E. 
Temperature of air at noon, 
82°’3 ; mean for the day, 
80°-6. 
Temperature of water ; — 
Surface, .... 
o 
81-2 
180 fathoms, 
48-9 
10 fathoms, 
81-5 
190 „ 
48-6 
20 
J) ... 
81-1 
200 „ 
48-3 
30 
,, ... 
80-6 
300 
45-7 
40 
)> ... 
80-0 
400 „ 
43-4 
50 
>> ... 
79-5 
500 
41-3 
60 
,, ... 
79-0 
600 „ 
39-5 
70 
n ... 
78-1 
700 „ 
38-2 
80 
>} ... 
75-0 
800 
37-2 
90 
)> ... 
68-5 
900 „ 
36-7 
100 
11 ... 
63-2 
1000 „ 
36-3 
110 
1 1 
59-6 
1100 „ 
36-0 
120 
>1 ... 
56-7 
1200 „ 
35-8 
130 
>1 ... 
54-3 
1300 
35-6 
140 
)> ... 
52-5 
1400 
35-4 
150 
11 ... 
51-0 
1500 
35-4 
160 
11 ... 
49-9 
Bottom, 
35-4 
170 
i» ... 
49-3 
Density at 60° F. : — 
Surface, .... 
1-02585 
200 fathoms. 
. 1-02556 
10 fathoms. 
1-02564 
300 „ 
. 1-02556 
25 
)) ... 
1 -02553 
400 „ 
. 1-02556 
50 
>1 ... 
1-02569 
Bottom, 
. 1-02567 
100 
11 ... 
1 -02564 
Depth, 1850 fathoms; deposit, Globigerina Ooze, containing 79’20 per cent, of 
carbonate of lime (see Murray and Renard, Deep-Sea Deposits Chall. Exp.). 
At 4 A.M. got up steam. At 5.30 a.m. shortened and furled sails, and at 6 a.m. 
proceeded under steam. At 7 a.m. sounded in 1850 fathoms. At 8 a.m. put dredge 
over. At noon obtained serial temperatures down to 1500 fathoms. At 1 p.m. 
commenced heaving in dredge, which came up at 3.30 p.m. with a large quantity of ooze 
and a few specimens. Made sail and proceeded towards Japan. During this and the 
following day gannets were occasionally observed from the ship. 
Distance at noon from Faraulep Island, Caroline Islands, 52 miles ; from Guam 
Island, 330 miles. Made good 85 miles. Amount of current 10 miles, direction W. 
