234 
THE VOYAGE OF H.M.S. CHALLENGER. 
Statics 54 . Temperature of water : — 
Surface, . 
70-5 
100 fathoms, 
65-0 
10 fathoms. 
• 
69 8 
200 
n • 
• 
63 9 
20 „ 
• 
68-2 
300 
. 
61-8 
30 „ 
• 
66-2 
350 
j* • 
. 
59-5 
40 „ 
. 
65 '8 
400 
n • 
49*8 
50 „ 
* 
66-2 
Density at 60" F. at surface, 1*027 15. 
Depth, 2650 fathoms ; deposit, Blue Mud, containing 24’56 per cent, of carbonate 
of lime (see Murray and Kenard, Deep-Sea Deposits Chall. Exp.). 
At 9.30 a.m. stopped and sounded in 2650 fathoms. At 12.10 p.m. put trawl over. 
Second gig away collecting surface animals. At 4.30 p.m. commenced heaving in trawl, 
which came up at 6.20 p.m. containing a few specimens. The carbonic acid was 
determined in water from the depth of 1 fathom, and amounted to 45*0 milligrammes 
per litre. 
Distance from Bermuda at noon, 162 miles. Made good 100 miles. Amount of current 
7 miles, direction N. 82° E. 
Asimal* from 
Trawu 
'Flic following species are recorded in the Zoological Beports from the trawl at this 
Station : — 
Ophturoidea (Lyman, Zool. pt. 14). 
Oph ioylypha lullata, Wyville Thomson, n.sp. Eight specimens; obtained also at 
Stations 45, 61, and 133. 
Amphiura verrUli, n.sp. Obtained at no other locality. 
Echinoidka (Agassiz, Zool. pt. 9). 
Calymne relicta, Wyville Thomson, n.g., n.sp. Two specimens; obtained also near 
Tristan da Cunha(?). 
'Die Station-book records also empty worm-tubes and a shrimp. 
Willcm<x.s-Suhm writes : “ The trawl brought up a shrimp, which evidently does not 
belong to ‘lie group of deep-sea shrimps previously described, and some worm-tubes 
formed of very many Foraminifera.” 
o, ,i Surface Organisms. — Fine brown Medusse, Tomopteris, lanthina with egg-capsules, 
SfHfAc* Nrrs. aJU } Heteropods, were taken on the surface. 
