SUMMARY OF RESULTS. 
185 
Station 27 (Sounding 74), St. Thomas to Bermuda (see Chart 6 and Diagram 2). Station 27. 
March 28, 1873 ; lat. 22° 49' N., long. 65° 19' W. 
Temperature of air at noon, 76 0, 3 ; mean for the day, 75°*6. 
Temperature of water : — 
Surface,*. 
75-5 
800 fathoms, . 
39-4 
100 fathoms, . 
72-5 
1000 
39-0 
200 „ 
64-7 
1100 
38-7 
300 „ . . . 
57-0 
1200 
38-4 
400 „ . . . 
49-7 
1300 
38-1 
500 „ . . . 
45-0 
1400 
37-8 
600 „ . . . 
42-2 
1500 
37-5 
700 „ 
40-8 
Bottom, 
36-2 
800 „ 
40-0 
Density at 60° F. at surface, 
1-02710, 
bottom, 1‘02601. 
Depth, 2960 fathoms; deposit, Bed Clay, containing 3 ' 2 5 per cent, of carbonate 
of lime (see Murray and Kenard, Deep-Sea Deposits Chall. Exp.). 
At 6.15 a.m. shortened and furled sails, and got up steam to sound. At 8 a.m. 
sounded in 2960 fathoms. At noon took a series of temperatures at intervals of 100 
fathoms down to 1500 fathoms. The carbonic acid was determined in the bottom water, 
and amounted to 53*0 milligrammes per litre. Completed sounding at 2 p.m., and made 
all plain sail. Two sharks with white fins, about 5 or 6 feet long, swam backwards and 
forwards near the ship for a long time while sounding ; the sailors called them shovel- 
nosed sharks. 
Distance from Bermuda at noon, 566 miles. Made good 89 miles. Amount of 
current 24 miles, direction N. 44° W. 
Station 28 (Sounding 75), St. Thomas to Bermuda (see Chart 6 and Diagram 2). 
March 29, 1873 , lat. 24° 39' N., long, 65° 25' W. 
Temperature of air at noon, 77 *8 ; mean for the day, 7 4 C ’8. 
Temperature of water : — 
Surface, . 
50 fathoms, 
100 
150 
200 
300 
400 
500 
600 
700 
» 
)> 
99 
99 
99 
99 
99 
99 
75-0 
800 fathoms, . 
40-0 
74-0 
900 „ 
39-5 
67-2 
1000 
39T 
64-6 
1100 
38’7 
63-5 
1200 
38-4 
58-3 
1300 
38-1 
51-8 
1400 
37-8 
45-2 
1500 
37-5 
42-3 
41-0 
Bottom „ 
36-3 
Station 28. 
