anno 1770 obfervati. 85 
appearance, that its orbit may be fenfibly elliptical 
(which it feems M. pingre, who firffc calculated the orbit 
in a parabola, had alfo fome fufpicion of) and concludes 
with recommending the inveftigation of the true ele- 
ments of its orbit in an elliplis. The laborious calcula- 
tion thus recommended has, we fee, been fince fuccefl. 
fully and fatisfadtorily performed in this paper by Mi 
LEXELJL. 
N. MASKELYNE. 
