1070 
THE VOYAGE OF H.M.S. CHALLENGER. 
Station 27H. 
120 fathom.s 
700 
300 fathoms. 
46-2 
130 „ 
69-5 
400 „ 
42-6 
140 „ 
68-5 
500 „ 
40-0 
LW „ 
67-7 
600 
38-7 
160 „ 
66-7 
700 „ 
37-7 
170 „ 
65-3 
800 „ 
37-1 
180 „ 
63-8 
900 „ 
36-8 
190 „ 
61-6 
1000 „ 
36-5 
200 „ 
59-2 
Bottom, 
36-5 
ty at 60° F. : — 
Surface, . 
. 1-02696 
200 fathoms, 
. 1-02593 
23 fathoms, 
. 1-02694 
400 „ 
. 1-02548 
50 „ . . 
. 1-02697 
1025 
. 1-02556 
100 „ . . 
. 1-02678 
Bottom, 
• 
. 1-02565 
1 , 1525 fathoms; deposit. Volcanic Mud, containing 
20*47 per cent, of 
carbonate of lime (see Murray and Renard, Deep-Sea Deposits Chall. Exp.), 
At 5 A.M. observed Tahiti and Eiraeo Islands ahead, and at 5,50 a.m. Tetuaroa Islands 
on the })ort bow. At 10 a.m. stopped and sounded in 1525 fathoms. Obtained serial 
temperatures down to 1000 fathoms. At 12.40 p.m. completed observations and proceeded 
towards Papieti^ Harbour, anchoring there in 11 fathoms at 4.20 p. m. 
Station 
T«i 
Stations 279 to 279c (Soundings 421 to 424), oflf Tahiti (see Chart 39). 
October 2, 1875. 
Temperature of air at noon 
80°*3 ; mean for the day, 77°*0. 
Temperature of water : — 
Surface, . 
79-0 
175 fathoms, , 
61-0 
25 fathoms, 
76-2 
200 „ . . . 
55-3 
50 „ 
76-2 
225 „ ... 
51-6 
75 „ 
74-4 
250 „ ... 
48-8 
100 „ 
72-4 
275 „ ... 
46-0 
125 „ 
69-8 
300 „ ... 
44-3 
150 „ . . 
66-3 
At 11 A.M. got up steam, and at 12.15 a.m. weighed anchor and proceeded out of 
I’apietc Harbour with a numerous party of visitors on board. Sounded successively 
outside rapicti* Ilarl>our in 420 fathoms, deposit Volcanic Mud, containing 22’30 per 
cent, of carixmatc of lime (Station 279); in 590 fathom.s, deposit Volcanic Mud, 
containing 25*28 per cent, of carbonate of lime (Station 279 a); in G20 fathoms, deposit 
