Dr Brewster on the Mean Temperature oftJie Eqitatar, 63 



Mean annual temp, calculated from my formula • « * ^ ti • t 

 of T = 8P8sin.D+ 1, . - 81° 36 



Difference, 1« 36 



2. Malacca. 



North latitude 2° 16'. East longitude 102° 12'. 



The observations at Malacca were made in 1 809 by Lieu- 

 tenant-Colonel William Farquhar, and the instrument was 

 kept within the Old Government House. 



Mean annual temperature at 8^^ - * 77° 67 



4 - - 82 33 



The corrections deduced from the Leith observations are + 

 1° 24 and — 2° 97, which gives 



Mean daily temperature deduced from 8^ - 78° 91 

 4^ - 79 36 



Mean of both, 79' 18 



But by applying the corrections deduced from the summer 

 months only, viz. + 1° 24' and — 3° 95', we have 



Mean daily temperature deduced from 8^ - 78° 91 



. 78 38 



ih 



Mean of both, 78° 65 

 Hence the observed mean annual temperature 



for Malacca for 1809 is - - - 78° 65 



Do. calculated from my formula T =r 81° 8 sin. 



D + 1, - - - - - - 81 02 



Difference, 2° 39 



3. Prince of Wales's Island. 



North latitude 5" 25'. East longitude 100° 19^. 



The observations at Prince of Wales's Island were made 

 for 1815, 1816, 1820, 1821, and for 1823. They were taken 

 in George Town, and those for the two latter years were made 

 in the Library. We have also a set made on Government 



