BY J. J. DE FERRER. 



225 



Havanna and Paris. 



Jannary 26. 1800. Emer. of I Sat. of % observed at Havanna. 



Vivier. 



Mean time. 

 b * 9 



6 36 30 



12 24 20 



5 47 50 

 Vivier east from Paris 9 24 



Havanna west from Paris. ... h . 5 38 26 



Veracruz west from Paris. . . 6 33 40 9 

 Havanna east from Veracruz. . 55 04 



Havanna west from Paris. . . . • • 5 38 36 9 



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



Havanna west from Porto-Rico ) 1 4 44 



by the Cronometer. J — — — — 

 Havanna west from Paris • • • • 5 38 34 



Mean. 



Natchez and Paris. 



New-Orleans west from Paris by the occupation of Jupiter by the E (p. 222) 

 Natchez west from New-Orleans by the Cronometer. .... 



Natchez west from Paris ■ 



Occidtation of the I Satellite of Jupiter by the moon, observed at 

 New-Orleans by Mr. Andrew Ellicott, and at the Royal Obser- 

 vatory of the Island of Leon by Don Julian Ortiz de Canelas, 

 on the \5thof January, 1799. 



I have sent to the American Philosophical Society the re- 

 sult of this occultation, which was observed the same day in 

 the island of Leon and at New-Orleans. This determination 

 besides being very exact, has appeared to me to merit atten- 

 tion, was it for no other reason than that it appears to be the 

 first time that the longitude has been deduced from such an 

 observation; at least I have not had any knowledge of its 

 having been done before. 



Apparent time. 



Longitude west of Paris. 



Apparent time at Paris. 

 Distance of the (C from the nonagesime. 

 Altitudes of the" nonagesime. 

 Horiz. parallax, of the 2 corresponding to 



the lat.— horiz. parallax of the 1 Sat, 

 Parallax in longitude. 

 Parallax in latitude. 



Apparent semidiameter of the £ — inflection 

 Distance of the I Satellite from Jupiier. 



