TEMPERATURE OF THE SEA AT VARIOUS DEPTHS. 
731 
TABLE X. 
Temperature of the Sea at various Depths, from Experiments made with self-registering Thermometers; 
arranged according to the Latitude. 
NORTH ATLANTIC. 
Longitude. 
No. of 
Tempe- 
Temperature. 
Latitude. 
Date. 
West. 
Fathoms 
rature. 
Surface. 
Air. 
48“ 45 ' 
6“ 19' 
83 
52.0 
57.0 
59.° 
May, 1825. 
41 20 
14 40 
140 
58. 
64. 
62. 
do. 
22 2 
21 14 
40 
63. 
72. 
74. 
June 
17 30 
27 1 
80 
60.5 
76.5 
77. 
do. 
SOUTH ATLANTIC. 
20 38 
38 46 
460 
43.5 
73. 
71. 
July, 1825. 
23 32 
41 12 
200 
56. 
75. 
71. 
do. 
31 29 
45 57 
310 
46.5 
66. 
62. 
August 
39 31 
45 2 
247 
55. 
59. 
47. 
do. 
42 2 
46 8 
200 
41. 
47.5 
47. 
Sept. 
46 15 
51 .53 
280 
41. 
51. 
55. 
do. 
47 18 
53 30 
270 
44.7 
49.8 
43. 
do. 
do. 
do. 
603 
39.2 
do. 
do. 
do. 
do. 
do. 
733 
40.1 
do. 
do. 
do. 
do. 
do. 
854 
39.4 
do. 
do. 
do. 
55 58 
72 10 
100 
42.5 
43.5 
37. 
do. 
do. 
do. 
230 
42.5 
do. 
do. 
do. 
do. 
do. 
330 
40.5 
do. 
do. 
do. 
do. 
do. 
430 
41.6 
do. 
do. 
do. 
SOUTH PACIFIC. 
38 30 
75 44 
90 
51. 
55.5 
54. 
Oct. 1825. 
do. 
do. 
200 
44.5 
do. 
do. 
do. 
do. 
do. 
300 
45.5 
do. 
do. 
do. 
do. 
do. 
400 
44. 
do. 
do. 
do. 
37 20 
48 47 
100 
57. 
60. 
57- 
July, 1828. 
do. 
do. 
190 
56.5 
do. 
do. 
do. 
do. 
do. 
290 
485 
do. 
do. 
do. 
30 21 
89 34 
100 
62.5 
63. 
66.5 
Nov. 1825. 
do. 
do. 
220 
50. 
do. 
do. 
do. 
do. 
do. 
320 
45.2 
do. 
do. 
do. 
28 40 
96 0 
100 
71. 
74. 
73. 
April, 1828. 
do. 
do. 
200 
.53. 
do. 
do. 
do. 
do. 
do. 
300 
49. 
do. 
do. 
do. 
do. 
do. 
400 
45. 
do. 
do. 
do. 
SOUTH PACIFIC. 
Latitude. 
Longitude. 
West. 
No. of 
Fathoms 
Tempe- 
rature. 
Temperature. 
Date. 
Surface. 
Air. 
270 17' 
103° 0' 
100 
64.5° 
68.5° 
66.° 
Nov. 1825. 
do. 
do. 
210 
51.5 
do. 
do. 
do. 
do. 
do. 
300 
46. 
do. 
do. 
do. 
26 36 
112 40 
433 
44. 
74.5 
71. 
do. 
do. 
do. 
540 
43. 
do. 
do. 
do. 
do. 
do. 
640 
44.5 
do. 
do. 
do. 
25 30 
108 0 
100 
69. 
80. 
80. 
April, 1828. 
do. 
do. 
200 
58. 
do. 
do. 
do. 
do. 
do. 
310 
50. 
do. 
do. 
do. 
do. 
do. 
410 
44. 
do. 
do. 
do. 
24 35 
127 0 
240 
60.5 
76. 
76.5 
Dec. 1825. 
21 19 
140 23 
200 
58.5 
81,5 
76. 
Feb. 1826. 
do. 
do. 
300 
51. 
do. 
do. 
do. 
do. 
do. 
400 
45. 
do. 
do. 
do. 
18 38 
136 1 
235 
70. 
76. 
76.5 
Jan. 
NORTH PACIFIC. 
0 0 
99 40 
80 
71- 
83. 
83. 
Mar. 1828. 
do. 
do. 
160 
63.5 
do. 
do. 
do. 
14 22 
99 35 
100 
57. 
88. 
91. 
do. 
do. 
do. 
200 
55. 
do. 
do. 
do. 
do. 
do. 
300 
48.5 
do. 
do. 
do. 
do. 
do. 
400 
49.5 
do. 
do. 
do. 
16 5 
133 35 
332 
49. 
75. 
76. 
Jan. 1827. 
do. 
do. 
432 
45. 
do. 
do. 
do. 
18 51 
196 2 
100 
67. 
79.5 
75. 
March 
do. 
do. 
200 
54. 
do. 
do. 
do. 
do. 
do. 
310 
48. 
do. 
do. 
do. 
do. 
198 30 
420 
44. 
79. 
76. 
do. 
18 53 
211 6 
200 
57. 
79.5 
82. 
do. 
23 6 
235 8 
210 
55.5 
80.5 
82. 
May 
do. 
do. 
310 
47. 
do. 
do. 
do. 
do. 
do. 
350 
45. 
do. 
do. 
do. 
24 57 
163 21 
200 
67. 
77. 
76. 
June, 1826. 
25 38 
117 48 
50 
62. 
63. 
62.5 
Dec, 1827. 
do. 
do. 
150 
50. 
do. 
do. 
do. 
do. 
do. 
210 
47.5 
do. 
do. 
do. 
do. 
do. 
310 
47.5 
do. 
do. 
do. 
5 A 2 
