22 Dr. Herschei/s Observations , &c. 
greatest elongation, when the last six measures were taken, 
1 have reduced them to the mean distance of Saturn, where they 
give 8' 31", 97. 
I forbear making deductions from this result, with respect 
to the quantity of matter contained in the planet, as, possibly, 
the orbit of the satellite may be considerably elliptical ; in 
which case measures taken in opposite parts of that orbit will 
be required, before we can make a strict application of the laws 
of centripetal forces. 
