A492 APPENDIX. No. VIL. 
fathoms coarse brown sand ; we nowstood in-shore, the wind having drawn round 
to the SS W. a pretty brisk sea breeze ; at 4 we had 17 fathoms, fine gray sand. 
Cape Mayumba N b. E 9 or ten miles. At 6, having run S Eb. S (compass) 
5 miles since 4 oclock, we had 13 fathoms, small gravel and shells; the land 
fron N NE toSSE; atScalm, came toin 10 fathoms, dark soft sandy ouse, 
and no current. 
Remark. We have hitherto remarked that as soon as it becomes calm in 
the evening, a very thick haze arises, and the dew falls much less than be- 
tween this and sun set ; the surf, though not heard by day, then becomes very 
noisy. ‘The calm generally takes place between 8 and 10 P. M. 
The latitude and longitude of Cape Mayumba from this day’s observation is 
3°34’ S, 11° 13’ 36" E, by chronometer. With respect to the longitude, there 
appears so great a difference between that given by our chronometers and those 
assigned in the following charts, that it must remain for future navigators to 
decide. Laurie and Whittle’s chart places it in 10..16. E, and Arrowsmith in 
10°)23° Ei. 
May 25th. At daylight calm and hazy, aheavy surf rolling on the shore, 
from which we were about 3 miles distant. At9 alight air from the south- 
ward ; weighed and made sail on the western tack: at noon observed in lat. 3° 
49/8. long. 11° 5’ EB. had 16 fathoms, fine brown sand with black specks, ex- 
tremes of the land from S 34? E to N 8 W;; at 2 P. M. had 17 fathoms; at 4 the 
same depth about 7 or 8 miles off shore; at 6 had 11 fathoms, then tacked, 
standing off W b.N4 miles till half past 7, when we had 13 fathoms, stiff black 
mud, and anchored. Variation (azimuth) 25°30’ W. 
May 26th. At 2a light breeze sprung up at ENE: weighed and made 
sail to the southward ; soon after the wind chopped round N W, and conti- 
nued gradually drawing round to S W, where it continued till 9, when some 
small rain fell ; it was very cloudy, and the wind suddenly veered round to SE. 
After weighing we ran on a SW b.S course 4 miles, and had 20 fathom’; 8 
miles further 29 fathoms; then S 7 E. 4 miles, 35 fathoms ; all black mud and 
broken shells. At noon observed in lat. 4° 8’S, long. 11° 15’ 22" EK, and had 
48 fathoms, same bottom ; we also found that a current had set us since weigh- 
ing 10 miles north. About 2 the wind drew round to SS W, wore to the S E, 
at 4 running on a S E course 3 knots an hour, we had 49 fathoms, at 5, 48., 
at 6, 47 fathoms, all muddy bottom, at 8, 40 fathoms, coarse sand, at 9, 35, and 
