/ 
the excentric from the mean anomaly of a planet . 137 
are calculated, appears to me the most simple and precise in 
theory, and the most expeditious in practice of any which I 
have seen. This I say with the greater degree of freedom, 
as I am so well aware of the similarity between its series and 
that of Keili/s, and so perfectly convinced of the advantages 
which it derives from Cassini's approximation, that I consider 
it, with the exception of some deviations, as a combination of 
their methods. 
MDCCCXVI. 
T 
