ig2 



Mr, Pond's Catalogue of Eighty-four 

 Castor. 



1812, Aug. 13, 19, 21. 1813, 

 Jan. 16, 24, 28, Mar. 5, 7, 

 10, 16 - 



Mar. 18,23, 31, Apr. 3, 8, 11, 

 13, 15, s8, June 1 



Aug. 11, 14, 16, 33, 24, 28, 

 * Sept. 2, 6, 7, 10 



> 46,916 



Mean of 10 



Mean of 20 

 Mean of 30 



46,916 



4^.794< 

 46,728 



Pollux. 



1812, June 13, 15, 19, Aug. 13, 

 16, 17, 19, Oct. 1,3, 4 



Oct.ii. 1813, Jan. 16, 22, 24, 

 Feb. 28, Mar. 5,10,13,18, 23 



Mar. 31, Apr. 8,11,13, i5,May 

 28, June 1, 25, July 28, 30 



Aug. S>5^ 11. i^i 22, 23, 24, 

 25, 28, Sept. 1 



}5^.353 



Mean of 10 

 Mean of 20 

 Mean of 30 

 Mean of 40 



5^,53^ 

 5^,434 

 5^,394 

 5^,341 



Exact to a quarter of a second. 

 /3 Tauri. 



1812, July 20, 22, 30, Aug. 13, 

 19, 21, Nov. 19, 28. 1813, 

 Jan. 2, 8 - 



Jan. 10, 11, 13, 24, 25, 27, 28, 

 31, Mar. 1, 3 



Mar. 5, 6, 7, 12, 17, 18, 19, 31, 

 Apr. 9, 10 



Apr. 11, 12, 14, July 15, 16, 17, 

 25, 28, 29, 30 - 



Mean of 50 



July 31, Aug. 6, 8, 9, 11, 15, 

 18, 20, 22, 23 



Exact to less than a quarter of a second, 



^43>%o 



} 43*438 

 }43»4io 

 } 43.903 



}43»82( 



Mean of 10 



Mean of 20 

 Mean of 30 

 Mean of 40 



43.^50 



43.544 



43.499 

 43,600 



43.^^3 



