No. 31.
YELLOW SEA.
July 23, 1816.—6 P.M.
Index uppermost. Instrument inverted.
A + 8'. 10" B - 7'. 10"
8 . 05 7 . 10
8 . 00 7 . 10
——— ———
Mean 8 . 05 Mean 7 . 10 B.
Mean + 8 . 05 A.
———-
15 . 15
———-
3 . 49 Dip.
3 . 50 Tabular.
1 Difference.
———-
Height of the eye, 15 feet, 3 inches.
Parts of the horizon observed, WSW. and ENE.
Barometer 29 . 78 inches
Thermometer {Air 82º
{Sea 77º
Latitude 35º north.
Longitude 124º east.
Wind light from south; horizon uncommonly well defined and sharp; sky clear, and sea perfectly smooth.
No. 40.