19. 



CONTINUATION OF TABLES I. AND III. OF DAMOISEAU'S TABLES OF 



JUPITER'S SATELLITES. 



[From the Nautical Almanac (1881).] 



DAMOISEAU'S Tables I. and III., the first containing the epochs of the 

 Mean Conjunctions of Jupiter's Satellites and of the Arguments of the 

 Inequalities, and the second containing the Inequalities due to the Perturb- 

 ations of Jupiter, do not extend beyond the year 1880. 



Hence it has now become necessary, in order to meet the requirements 

 of the Nautical Almanac, that these Tables should be prolonged. 



The perturbations of Jupiter employed by Damoiseau are those found 

 from Bouvard's Tables of the planet, but since Le Verrier's new Tables 

 are now used for computing the place of Jupiter given in the Nautical 

 Almanac, it has been thought desirable to use the same Tables in order 

 to form Table III. of Jupiter's Satellites. 



The epochs of Mean Conjunction in Table I. are determined by the 

 condition that when corrected for Le Verrier's value of the great inequality 

 of Jupiter, they shall agree in the years 1750 and 1850 with the epochs 

 given by Damoiseau when similarly corrected for Bouvard's value of the 

 same inequality. 



A. 15 



