1843.] SIMON'S BAY. 9 



Depth. Temp. 



Latitude of position 2 32' S. 300 46 Fahr. 



400 38? 



Longitude 8 11' W. 500 46 



600 45 5' 



Sea at surface 79 700 46 



800 45 



900 40 25' 



1,000 42 75' 



The slight variations of the last two may be accounted 

 for by the vibration of hauling the line in affecting the 

 indices of the Six's thermometers. On the 25th, in 

 lat. 4 14' S., long. 4 41' W., soundings were obtained at 

 1,615 fathoms, though a previous trial on the 20th, at 

 the great depth of 3,065 fathoms, proved unsuccessful. 



After light south-westerly airs we were enabled, on 

 the 28th of March, by a succession of breezes from the 

 S.E., to pass 150 miles to windward of Ascension in 

 9 44' E. On referring to a little publication by Henry 

 Wise, Esq., termed " Analysis of a Hundred Voyages 

 to and from China," it may be noticed, by way of com- 

 parison, that the ' Castle Huntly,' a fast-sailing ship in 

 the China trade, which quitted the Lizard on the 1 5th 

 of February, and had fair winds, crossed the Equator in 

 22 5' W., on March 23rd, and on April 4th reached the 

 lat. of 22 12' S., and long. 28 53' W., taking twelve 

 days to perform this distance. The ' Samarang ' crossed 

 the Equator on the 21st of March, in the meridian of 

 9 W., and on the 4th of April reached 22 38' S., and, 

 long. 15 43' W., 790 miles to windward, without expe- 

 riencing the " wear and tear " resulting from calms, and 

 passing to the westward of 16 18' W., arrived in Simon's 

 Bay, Cape of Good Hope, on the 25th of April. 



