492 APPENDIX. No VII. 



fatlioms coarse brown sand ; we nowstood in shore, the wind having drawn round 

 to the S S W. a pretty brisk sea bi-eeze ; at 4 we had 17 fathoms^ fine gray sand. 

 Cape Mayiimba N b. E 9 or ten miles. At (>, having run S E b. S (compass) 

 .5 miles since 4 o'clock, we had 1 3 fathoms, small gravel and shells ; tlie land 

 from N N E to S S E ; at S calm, came to in 1 fathoms, dark soft sandy ouse, 

 and no current. 



Remark. We have hitherto i-emarked 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 

 S''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 

 assitrned in the ibllowino; charts, that it must remain for future navigators to 

 decide. Laurie and Whittle's chart places it in 10.. 16". E, and Arrowsmith in 

 U)°23'E. 



]May 2.")th. At daylight calm and hazy, a heavy surf rolling on the shore, 

 from which we were about 3 miles distant. At 9 a light air from the south- 

 ward ; weighed and made sail on the western tack : at noon observed in lat. 3* 

 ID'S. lono-. 11°5'E. had If) fathoms, fine brown sand with black specks, ex- 

 tremes of the land from S 34° E to N S W; at 2 P. M. had 1 7 fathoms ; at 4 the 

 same depth about 7 or S miles off shore ; at fi had 1 1 fathoms, then tacked, 

 standing off W b. N 4 miles till half past 7, when we had 13 fathoms, stiff black 

 mud, and anchored. Variation (azimuth) 25° 30' W. 



May 26th. At 2 a light breeze sprung up at E N E : 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 S W b. S course 4 miles, and had 20 fathoms ; 8 

 miles further 29 fathoms ; then S | E. 4 miles, 35 fathoms ; all black mud and 

 broken shells. At noon observed in lat. 4° S' S, long. 11° 15' 22' E, 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 S S W, wore to die 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 



