204 ASTRONOMICAL OBSERVATIONS 



circumpolar stars, when on the meridian, both 

 above and below the pole; also, by observing, 

 when on the meridian, the altitude of the sun, 

 or a star, whose polar distance is known. 



As no opportunity has been presented to 

 make an observation on the sun, when in the 

 equator at noon, I have availed myself of the 

 other methods alluded to, viz. the circumpolar 

 stars, and the sun and stars, whose polar dis- 

 tances are laid down in the Nautical Almanac. 



It may perhaps be proper further to remark, 

 that ttie altitude of the sun or stars, given in 

 the tables, is the true altitude, the necessary 

 allowance for refraction having been made from 

 the apparent altitude. 



Mean Latitude of Cornbrook, 

 from 164 observations on the 

 Sun, in the years 1824, 25, o t i/ 



26, and 27 53 28 2.6 



Greatest Difference 34 



