MATHEMATICAL PAPERS. 3 
To —— vainaa pigresa shag’ $7''. 
Add E 7 arco a dioi jo: 
XA 
Tin i jaar ecliptic canjundtion by obíerv..$ 43 47. 
SCHOLIUM, 
Fredy te iron of the ging or ending of a folar 
ftruĉted, or, [d^ place, whole difference of Songieide from that, 
for which the tables have been conftruéted, is accurately afcer- 
tained, the error in the moon's longitude as given by them, 
may be known, if they have given her latitude exact, or r the : 
error, if there be one, has been corre&ed by obíen 
Eor example; when the foregoing eclipfe began at Greenwich, 
il y N | zt printed tables, Ward ; i 3' 
Ld + 46", 'o ; the error of thefe ables, imi ipo eio 
longitude, at that time, "was -- 23", fappofing the latitude 
E ase the obfervation x the end thee error was 23 Tite 
wre ae MARC qut ne dp Beto find 
the conjunction, at Gambridgs; non e: obfervations made there. 
Veo $t. as deum TES e meo d. 
“Let usaffame che difference of a : 7 «ridi : 
me to be 45-44' 25”, then, at 115 39° oes ALM. 
E en the Fipe began at; Cimbridge, 1t was 425! 48'*, PLM, 
t Greenwiéh ; and the fun’s longitude and right afcenfion, and 
pe oe the fame, at each place. 
Having 
