566 Mr. Hellins’s improved Solution, See. 
I have taken notice above, in the computation of B, that, of 
six terms wanted, two were ready, one of them being a con- 
stant quantity, and the other computed in the preceding ope- 
ration ; and it may be remarked, that, if the two terms in which 
r 4 enters had been omitted, the difference in the result would 
not have been so much as 2 in the fourth place of decimals, 
which is inconsiderable. Therefore, of the six terms in this 
expression, two are given, and two more only need be com- 
puted in this case. 
And it may be further remarked, that the term e is always 
given in the expression of the value of A, and that the two 
terms in which c 4 enters may be omitted, as that will occasion 
a difference in the result, of only 3 in the fifth place of de- 
cimals, which is quite inconsiderable. Of the seven terms, 
therefore, in Theorem 1. Art. 12. one is given, and four more 
only need be computed, when Venus and the Earth are the two 
planets of which the perturbations are to be computed. 
15. My avocations calling me off from these delightful spe- 
culations, I must now put an end to this paper, without men- 
tioning some other observations which I have made on this 
subject. 
May 6 , 1797. 
i 
