with Observations on the Analysis of Salt-hrines. 33 



Hour. 



Temperature. 



10 

 12 

 2 A.M. 



4 Land in sight 



7 About twenty miles from land 

 8 



10 

 12 



2 P.M. 



4 



Sin soundings 

 10 

 12 



4 A.M. 



6 



8 .. .. 

 During these two days we were gradually ajjproacliing land, 



at the average rate of about two miles an hour. The observa- 

 tions were continued, till we were within about two miles of the 

 shore. The observations I made on leaving the bay, corre- 

 sponded with the foregoing, as nearly as could be expected, con- 

 sidering the track was not precisely the same, and the cold sea- 

 son more advanced. o // 

 ,?une 3d. 8 A.M. Half a mile from land, temp, of water 53 



58 



58 



58,5 



59 



58 



57 



5(> 



56 



55 



56 



56,5 



56,5 



55 



55 



56,5 



56,5 



54,25 



10 About three miles from land 



2 P.M. Off Robin Island, nine miles from 



Cape Town, in ten fathoms water 

 4 

 12 

 2 A.M. .. 

 S 



10 

 12 

 2 P.M. .. 

 4 



Before four in the afternoon we were out of sight of the Cape 

 of Good Hope, and in deep water. 



In approaching Ceylon, and particularly the southern shore 

 of the island, where the mean annual temperature appears to be 

 about 80^, little or no change of temperature could be expected 

 on entering shallow water ; yet we experienced a manifest 

 change, a reduction of at least two degrees on coming into 

 soundings. When we were in north latitude 5° 17'', and east 

 longitude by chronometer 79° 42", the temperature of thp water 

 Vol.51.No.237. Jaw, 1818. C begai\ 



55,25 

 55,25 

 54, 5 

 54, 5 

 57, 5 

 57 

 60 

 61 

 62 



