and Temperature of Sea-Water. SI 9 
Air. 
Water. 
Wind and Weather* 
G'’ P. M. 
81®.5 
83°. 75 
Calm, clear. 
8 
80 
83 
NW, Almost calm, clear. 
10 
T9 
82.5 
Do. do. do. 
The night 
was fine. 
and almost calm. 
Feh. 9. 1820. S. 
Lat. 0° 
41, East Long. 81° 49'. 
Air. 
Water. Hygrom. Wind and Weather. 
6^h A. ft 
5. 77° 
82°.5 
W. Very gentle, clear. 
8 
80 
83 
W. by S. do. do. 
10 
81 
83 
W. gentle do. 
12 
81 
84 
6° » W. by N. do. do. 
2 p. fti. 
78 
83 
4 NW. squally, raining hard. 
6 
80 
83.5 
5 Do. do. cloudy. 
10 
79 
82 
3 Do. do. do. 
The night was rather squally and cloudy, with occasional 
showers. 
FeK 10. 1820. S. Lat. 2° 8', East Long. 81° 54'. 
Air. 
Water. 
Hygron: 
t. Wind and Weather. 
71 ^ A. M. 
77° 
81°5 
2.5 
N. by. W. squally, cloudy, 
showery. 
10 
78.5 
82 
3.5 
Do. do. 
12 
80.5 
82 
5.5 
Do. do. 
2 P. M. 
82 
82 
5 
Do. do. 
A 
6 
79 
81 
4 
Do. do. 
The night was boisterous. 
with heavy rain, and some thunder 
and lightning. 
Feb, 11. 
1820. 
S. Lat. 4° 45', East Long. 81° 54'. 
Air. 
Water. 
Hygrom, 
, Wind and Weather. 
T*' A. M. 
79° 
81°.5 
4° 
W. by W. stormy, cloudy. 
10 
81 
82 
4.5 
W, do. do. 
12 
79 
81.5 
4 
W. overcast, rainy. 
2 P. M. 
81 
82 
4 
W. squally, do. 
6 
78 
81.5 
2 
W. do. raining slightly. 
9 
79 
81.5 
4 
W. Fresh, pretty clear. 
, The wind was fresh during the night, and the sky pretty 
clear, with occasional showers. 
* These Hygrometrical observations were made with two thermometers, one 
of which had its bulb covered with an absorbent substance, and wetted with wa- 
ter. The degrees in the column show the descent of the mercury by the cold, pro- 
duced by evaporation. 
Y 2 
