Longitude of Tak-Colkgs. S5H 



and latitude are made, according to that eftimate of 

 the figure of the earth, which gives the proportion of 

 the polar to the equatorial diameter, as 300 to 301. 



From thefe data, the longitude might be calculated, 

 if the folar and lunar tables could be relied on, as per- 

 fe(5tly correct. But it is well known that they are lia- 

 ble to an errour, which might materially affect the re- 

 fult. It is neceffary, therefore, that the tables fhould 

 be corrected, or that the time of true conjundion fhould 

 be obtained, from obfervations, at fome place or places, 

 whofe longitude is already known. For this, we are 

 indebted to a very obliging communication from Na- 

 thaniel Bowditch Efq. of Salem ; on whofe accuracy 

 in calculation, full reliance may be placed : and who 

 had undertaken to collect the obfervations, which were 

 made on the eclipfe, in different parts of the United 

 States. He finds the time of true conjunction to be at 

 6h. 51'. 05.W apparent time at Greenwich ; the longi- 

 tude of the fun and moon, at that time, 1 73° 56' 32.4" ; 

 and the moon's Latitude 36' 40.2'' North. The Fol- 

 lowing are the calculations for the longitude at Yale 

 College. 



For the parallaxes, Iffc. at the beginning of the Eclipfe, 



h. m. 6. 

 Apparent time of beginning at Yale-College, 44 12.7 



Assumed difference of Longitude, - 4 51 50 



Apparent time at Greenwich, 



Sun's Right Ascension in time, 



Sun past meridian, - _ - - 



Correction for the sun's advance, 



R. ascension of mid- heaven, in time. 

 Do. - - - in degrees. 



Distance of meridian from Capricorn, 



Apparent time of beginning 



Do. of conjunction, (from Mr. Bowditch) 



Time from beginning to conjunction, 

 Moon's Lon. at conjunction. 



