204 
THE VOYAGE OF H.M.S. CHALLENGER. 
At 6.20 a.m. shortened and furled sails, and got up steam to sound. At 7.30 a.m. 
• ; i . 1* .! . ) 2G50 fathoms. \t 9 a.m. completed a scries of temperatures down to 1500 
f hum . At 10.45 a.m. put the dredge over, and veered 3400 fathoms. At 2.30 p.m. 
- . - : i r Mv.'iui cutter away to try current. At 3 p.m. commenced heaving in dredge, which 
m up -.50 p.m. with a small quantity of Globigerina Ooze. Many petrels ( Thalas - 
'5 Iroma wiUwii) and numerous patches of sea-weed were seen. 
1 >ist net. at noon from Gibb’s Hill Lighthouse, Bermuda, 43 miles. Amount of 
current 9 miles, direction S. 13° E. 
Station 38 (Sounding 9G), Bermuda to Halifax (see Chart 9 and Diagram 2). 
April 25, 1873 ; lat. 33 c 3' N., long. 66° 32' W. 
T mperature of air at noon, 73°*3 ; mean for the day, 70’*5. 
Temperature of water 
: — 
Surface, . 
70°0 
450 fathoms, . 
54*7 
20 fathoms, . 
69-0 
500 
» * * * 
50-0 
40 „ . 
68-0 
550 
» • • • 
46-0 
.60 „ . 
67-1 
600 
9} 
43-6 
80 „ . 
66-2 
650 
» • • • 
42-0 
. ioo 
660 
700 
>7 
411 
120 „ . 
660 
800 
40-0 
140 „ .. 
65-4 
900 
» * • • 
39 6 
160 „ . 
64-8 
1000 
» • • • 
39-2 
180 „ . 
64-2 
1100 
» • * 
38-8 
200 „ . 
63-7 
1200 
38-4 
250 „ . 
63-5 
1300 
» * * • 
38-0 
300 „ 
63-0 
1400 
j> • • • 
37-7 
350 
613 
1500 
yy • • • 
374 
400 „ . 
58-5 
Bottom, 
36-5 
Density at 60 F. at surface, 1*02723. 
Depth, 2600 fathoms; deposit, Globigerina Ooze, containing 50*84 per cent, of 
carl mate of lime (see Murray and Renard, Deep-Sea Deposits Cliall. Exp.). 
V 9.15 a.m. shortened and furled sails, and proceeded under steam to sound. 
•**“ l a 2000 fathoms The water-bottle was sent down, but owing to the stopcock 
iving njtcncd a good deal of the water was lost. At 10 a.m. serial temperatures were 
o. n n to 1500 fathoms. During the day the force of the wind had been gradually 
r v-u.m t rminritiug in half a gale towards nightfall, accompanied by sheet lightning 
‘ " • '• rt . r: horizon, and a steadily falling barometer. A flock of petrels ( Thalussi - 
a > i/Aoni) u.un hovering astern all day, and porpoises were seen playing under the 
' w - 1 he sea was brilliantly phosphorescent at night. 
