GEOGRAPHICAL SITUATIONS. 



367 



The difference of latitudes at conjunction of * 8, in page 215, 

 appears to be within the limits of l"; supposing the error in the 

 difference of the longitudes of the moon=0",5; of the stars 

 0",8, and the influence of an error of 2" in the difference of 

 the latitudes of the stars and the moon; the sum of the three 

 errors, supposing it on one side, would influence the result of 

 the horizontal parallax of the moon only l",0. 



If it should be supposed that the periodical coefficients of 

 La Place represent the motion of the lunar parallax better than 

 the coefficients of the tables of Burg; the constant equatorial 

 will result (from the present obscrvations)=57' Ol",0 and the 

 constant equatorial of the new tables is the same. 



The longitude of Porto-Rico, calculated by these elements, 

 is the same as inserted in page 220. 



Errata, on the table of apparent lunar distances, page 348. 



Results of the observations in the table, page 348. 



1807. Novr. 



Deer. 



1808. Jan'y. 



Mean. .... 



Havanna west from the Plantation. 



5 38 18,4 

 44,3 



Havanna west from Paris. . . » . . -. 5 39 02,7 



C C 



