1204 
THE VOYAGE OF H.M.S. CHALLENGER. 
Station 325. 
Animau raoM 
Tiuwu 
Temperature of water ; — 
Surface, . 
70°-8 
600 fathoms, . 
37 -S 
25 fathoms, 
69'8 
700 „ 
37-2 
50 „ 
68-3 
800 „ 
37-2 
75 „ . . 
65-3 
900 „ 
37-2 
100 „ 
62-2 
1000 „ 
37-2 
125 „ 
59-7 
1100 „ 
37-2 
150 „ 
58-8 
1200 „ 
37-2 
175 „ 
57-5 
1300 „ 
37-2 
200 „ 
56-1 
1400 „ 
37-2 
225 „ 
54-3 
1500 „ 
37-2 
250 „ 
51-2 
2200 „ 
34-0 
275 „ 
48-3 
2300 „ 
33-2 
300 „ 
45-0 
2400 „ 
32-8 
400 „ 
500 
40-4 
38-8 
Bottom, 
32-7 
Density at 60° F. : — 
Surface, . 
. 1-02675 
300 fathoms. 
. 1-02675 
25 fathoms, 
. 1-02674 
400 „ 
. 
. 1-02583 
50 „ . . 
. 1-02689 
800 „ 
. 1-02535 
100 „ 
200 „ . . 
. 1-02667 
. 1-02634 
Bottom, 
. 1-02583 
Depth, 2650 fathoms ; deposit, Blue Mud, containing no carbonate of lime 
(see Murray and Renard, Deep-Sea Deposits Chall. Exp.). 
At 4.30 A.M. shortened and furled sails, and proceeded under steam. At 5.30 a.m. 
Hounded in 2650 fathoms. Put trawl over and veered 3200 fathoms. Obtained serial 
tcmjicraturca down to the bottom. The carbonic acid was determined in the bottom 
water, and amounted to 50'2 milligrammes j)er litre. Shortly after noon a shark over 
ten feet in length was caught. At 1 p.m. commenced heaving in trawl, which came up at 
4 P.M. containing many specimens. Made sail. Many black night hawks {Procellaria 
mpiinoctialis) were observ'cd flying about the ship till quite dark. 
Tristan da Cunha distant at noon, 1629 miles. Made good 76 miles. Amount of 
current 18 miles, direction S. 27° E. 
Tlie following species are recorded in the Zoological Reports from the trawl at this 
Station : — 
Hbxactinellida (Schulze, Zoo), pt. 53). 
Ilolfiscus stcllatua, n.g., n.sp. Two specimens ; obtained at no other locality. 
