-224- GEOGRAPHICAL POSITIONS, 



From a comparison with the new tables, the following cor- 

 rections arise. 



Correction of epochs in 1750 — 13" 

 Idem of the secular equation. = 54- 96 



Coefficient of Mr. Laplace=15" sin (C's apog. + 2 long, & — 3 ©'s apog.) 



To determine the error of the solar tables, I have calculated 

 various observations of the Rev. Nevil Maskelyne correspond- 

 ing to the epochs of observations in the said tables. 



I have further applied the equation XVIII of the lunar ta- 

 bles, of which no use is made in the calculations of the nauti- 

 cal almanac. The result of all the corrections, I have reduc- 

 ed to time, to apply it to the mean of the results of longitude 

 as I have mentioned above. 



Difference of longitude between Paris and Veracruz* 



Veracruz, apparent time. h " 

 1795, Aug. 8. Emer. I Sat. of If 8 53 45 2^ 



14 II. 8 57 29 8 1 difference of longitudes, 7 h ' " 



Oct. 9 I. 8 03 00 8 V by the comparison of the i.6 33 32 



10 II. 5 58 55 5 1 observations in Europe, j 



25 I. 6 26 32 1 ) 



By 26 series of <£'s distances (page 223) 6 33 48 



By the occultation of o Sagittarius by the £( page 160, Vol. VI, part I.) 6 33 42 8 



Longitude of Veracruz west from Paris. 6 33 40 9 



Veracruz and Havanna. 



k / v 



Aug. 8. 1795 Em. I Sat of If observed at Havanna by Don Cosme Churruca. 9 48 50 7 

 Observed by me at Veracruz 8 53 45 2 



Difference of longitudes 55 05 5 



Difference of longitudes by the cronometer. . . . 55 02 5 



Veracruz west from Havanna. Mean. 55 04 



Capital of Pojto-Rico and Paris. 



By 20 series of S's distances (page 222) 



By 4 series of (C's distances compared with the observations of the 7 

 Rev Nevil Maskelyne at Greenwich, on Jan. and Feb. 1796. J 

 By the occultation of a y by the <£. Oct. 21, 1793. (page 220) 



Porto-Rico west from Paris. Mean. 4 33 50 



