of the principal jlxed Stars, 

 n Ursa Major. 



*§d 



r 



1812, June 11, 12, 15, 14, 15, 



17, 20,20,23,23,24 - 



June 28, July 6, 7, 8, 9, 1 1, 15, 



18, 20, 28 - -r 



Aug. 7, 15, 19, 20, 22, Sept. 16, 

 18, 20, 21, Oct. 4 



Oct. 5, 7, 8, 24, 28, go, Nov. 

 5> ^, 7» H - 



Nov. 18, 21, 23, Dec. 5, 8, 23. 

 1813, May 26*, 28,31, June 1 



June 4, 7, 10, 11, i«, 16, 21, 

 22, 23, 25 - r 



June 26, 57, July 5, 6, 9, 16, 

 Ji8, 19, 20, 22 



July 24, 27, 28, 29, 30, Aug. 

 3, 12, 13, 16, 19 



158,069 



158,138 

 } 58,000 



} 57.348 



}58,i23 

 }58>057 



57>^4i 



Mean of 10 57,671 



Mean of 20 

 Mean of 30 

 Mean of 40 

 Mean of 50 

 Mean of 60 

 Mean of 70 

 Mean of 80 



57*870 

 57'9^^ 

 57^9^9 

 57>845 

 57>^9^ 

 57 '9^5 

 57,881 



This result is probably not inferior in precision to the last. 



a Persei. 



;8i2, July 7, 9, 17, 20, 21, 28, 

 Aug. 16, 17, Dec. 8, 12 



Dec. 13, 14, 28. 1813, Jan. 8, 

 10, 1 1, 22, 24, 28, Feb. 5 



Feb. 23, March 1, 4, 6, 7, 17, 

 19, Apr. 11, 12, 13 



Apr. 14, 18, May 27, 28, June 

 1, 19, 20, July 6, 15, 17 



} 52^70 



} 52,41 7 

 } 52,468 



} 52 ,824 



Mean of 10 

 Mean of 20 

 Mean of 30 

 Mean of 40 



53,970 



5^fi9S 

 53,618 



53,670 



Exact to a quarter of a second. 



