THE VOYAGE OF H.M.S. CHALLENGER. 
298 
S: u- n 8>. 1000 fathoms, one of the thermometers being broken by the pressure. Sent down water- 
bottle, and obtained samples of water from the bottom, 600 and 400 fathoms. At 
4.50 p.m. completed temperatures, and at 5 p.m. made all plain sail. 
Distance at noon from St. Vincent, 478 miles. Made good 119 miles. Amount of 
t urrent 11 miles, direction S. 53° W. 
St. it;.. s 89. Station 89 (Sounding 153), Madeira to Cape Verde Islands (see Chart 6 and 
Diagram 7). 
July 23, 1873 ; lat. 22° 18' N., long. 22° 2' W. 
Temperature of air at noon, 74 0, 8 ; mean for the day, 73°*8. 
Temperature of water : — 
Surface, .... 
73-5 
100 fathoms, 
64-0 
200 
56-0 
300 „ ... 
50-5 
400 „ . . , 
470 
500 „ ... 
44-5 
600 „ ... 
430 
700 „ ... 
420 
800 „ ... 
410 
900 fatlioms, . . . 40 0 
1000 „ ... 39-0 
1100 „ . . . 380 
1200 „ ... 37-4 
1300 „ ... 370 
1400 „ ... 36-8 
1500 „ ... 36-7 
Bottom „ . . . 36 6 
Density at 60 F. at surface, 1*02719. 
Depth, 2400 fathoms ; deposit, Globigerina Ooze, containing 58*50 per cent, of 
carbonate of lime (see Murray and Renard, Deep-Sea Deposits ChaH. Exp.). 
At 9.20 a.m. shortened and furled sails, and got up steam to trawl and sound. At 
9.45 a.m. put trawl over and veered 3000 fathoms. At noon sounded in 2400 fathoms. 
At 1 p.m. took serial temperatures at intervals of 100 fathoms down to 1500 fathoms. 
At 4.30 p.m. commenced heaving in trawl, which came up at 6.30 p.m. containing a few 
-penmens. At 6.45 p.m. made all plain sail. Since the previous day the colour of the 
surface water changed from blue to green. 
Distance at noon from St. Vincent, 362 miles. Made good 117 miles. Amount of 
current 5 miles, direction S. 
Axmtu nu>n 
Tiuwu 
The following species are recorded in the Zoological Reports from the trawl at this 
Station : — 
Deep-Sea Kkratosa (Haeckel, Zool. pt. 82). 
Ammoconia atiloplcgma, n.g., n.sp. Obtained at no other locality. 
J'mmmopemma calcareum, n.sp. Obtained at no other locality. 
