158 
THE VOYAGE OF H.M.S. CHALLENGER. 
.'a; s is. bark appears of a deep blue, the tail a brilliant yellow, the pectoral fins white. They 
would i at take a bait ; the ‘grains 1 ' were tried, a bottle being dropped on the water with 
a >tring to attract the fish, but without success. A small shark with two pilot fish came 
alongside and twice took a bait, but was not hooked.” 
O 9 
S r. Station 19 (Sounding 63), Tenerife to Sombrero (see Chart G and Diagram 1). 
March 11, 1873 ; lat, 19° 15' N., long. 57° 47' W. 
Temperature of air at noon, 77°'8 ; mean for the day, 7G 0, 5. 
Temperature of water at surface, 75"*0 ; bottom, 35°-5. 
Density at GO F. at surface, 1*02728; bottom, 1*02614. 
Depth, 3000 fathoms; deposit, Red Clay, containing 1*49 per cent, of carbonate of 
lime (see Murray and Renard, Deep-Sea Deposits Chalk Exp.). 
Vt 3 p.m. sounded in 3000 fathoms, and at 4.30 p.m. made all plain sail. Flying- 
fish were very abundant, and gulf-weed floated past in considerable quantity. 
Sombrero Island distant at noon, 344 miles. Made good 132 miles. Amount of 
current 1G miles, direction N. 80° W. 
Station 20 (Sounding 64), Tenerife to Sombrero (see Chart G and Diagram 1). 
March 12, 1873 ; lat. 18° 56' N., long. 59° 35' W. 
Temperature of air at noon, 
7 8 ° ' 8 ; mean for the day, 75°5. 
Temperature of water : — 
Surface, .... 
75-0 
900 fathoms, . 
39-3 
100 fathoms, 
68-5 
1000 „ . . . 
38-8 
200 
59-8 
1100 „ 
38-3 
300 „ ... 
49-7 
1200 „ . . . 
37-8 
400 „ . . . 
45 0 
1300 „ . . . 
37-3 
500 „ . . . 
42-5 
1400 „ . . . 
36-8 
600 „ ... 
41-2 
1500 „ 
36 -3 
700 „ ... 
40-5 
Bottom, .... 
360 
800 „ . 
39-8 
Density at G0 r F. at surface 
, 1*02727; 
bottom, 1 027 2 7. 
Depth, 2975 fathoms; deposit, Red Clay, containing 3-50 per cent, of carbonate of 
lime (see Murray and Renard, Deep-Sea Deposits Chalk Exp.). 
At G.30 a.m. put dredge over, and at 9 A.M. sounded in 2975 fathoms. At noon 
took a -cries of temperatures at intervals of 100 fathoms down to 1500 fathoms. At 
1.30 p.m. commenced heaving in dredge, which came up at 5.30 p.m. half full of mud, 
ontaining about a dozen Annelid tubes, some with the animal inside. 
’ \n ii n in trumonl with four or five lmrbcd point", and a line attached, used by Bailors for striking and 
Ukmg Ash. 
