_August 6, 1816._--1 P.M.

Index uppermost. Instrument inverted.

A + 7'. 48" B - 11'. 55"

7 . 48 11 . 45 7 . 55 11 . 45 ------ ------- Mean 7 . 50 Mean 11 . 48 B.

Mean + 7 . 50 A.

------- 4) 19 . 38 ------- 4 . 54 Dip.

3 . 53 Tabular.

1 . 1 Difference + -------

Height of the eye, 15 feet, 6 inches.

Parts of the horizon observed, SW. by S. and NE. by N.

Depth of the sea, 29 feet.

Barometer - 29 . 64 inches.

Thermometer { Air 83-1/2 { Sea 81-1/2 Lat.i.tude - 38 50' north.

Longitude - 118 00' east.

Moderate breeze from SE. by S.; rather hazy, but the horizon sharp and distinct.

No. 50.

OFF THE PEI-HO, YELLOW SEA.

_August 8, 1816._--6.15. A.M.

Index uppermost. Instrument inverted.

A + 10'. 20" B - 12'. 50"

10 . 18 12 . 45 10 . 35 13 . 00 ---------- ---------- Mean 10 . 24, 3 Mean 12 . 51.7 B.

Mean + 10 . 24.3 A.

---------- 4) 23 . 16 5 . 49 Dip.

3 . 50 Tabular.

1 . 59 Difference + ----------

Height of the eye, 15 feet, 3 inches.

Parts of the horizon observed, NNE. and SSW. clear of the land.

Depth of the sea, 26 feet.

Barometer 29 . 65 inches.

Thermometer { Air 69-1/2 { Sea 78

Wind NNW. moderate.

Lat.i.tude - 38. 50' north.

Longitude - 118. 00' east.

_Mem._--The top of the fort at the mouth of the river, is just visible at 30 feet from the surface of the water.

No. 53.

OFF THE PEI-HO, YELLOW SEA.

_August 10, 1816._--6.10. A.M.

Index uppermost. Instrument inverted A + 13'. 55" B - 7'. 30"

13 . 50 7 . 15 13 . 45 7 . 25 ------- --------- Mean 13 . 50 Mean 7 . 23.3 B.

--------- Mean + 13 . 50 A.

--------- 4) 21 . 13.3 5 . 18.3 Dip.

2 . 20 Tabular.

2 . 58 Difference +

Height of the eye, 5 feet, 6 inches.

Depth of the water, 5 feet.

Parts of the horizon observed, N. by E. and S. by W. just clear of the land.

Barometer 29 . 69 inches. } On board His Majesty's ship Lyra, Thermometer { Air 75 } distant three or four miles.

{ Sea 77 } Wind WNW.

About one mile from the fort of Tung-coo, at the entrance of the Pei-ho river. _Note._--Instrument readjusted.

No. 58.

OFF THE PEI-HO, YELLOW SEA.

_August 10, 1816._--2 P.M.

Index uppermost. Instrument inverted.

A + 15'. 40" B - 8'. 50"

15 . 30 8 . 50 15 . 35 8 . 50 -------- -------- Mean 15 . 35 Mean 8 . 50 B.

Mean + 15 . 35 A.

4) 24 . 25 6 . 6.3 Dip.

3 . 50 Tabular.

2 . 16 Difference +

Height of the eye, 15 feet, 3 inches.

Parts of the horizon observed, N. by E. and S. by W.

Depth of the sea, 27 feet.

Barometer 29 . 68 inches.

Thermometer } Air 84 } Sea 83

Lat.i.tude 38 . 50' north.

Longitude 118 . 00' east.