Attractions of Spheroids of every Description. 45 
such spheroids, as have been shown to fall under his method, 
were deduced directly from the function which expresses their 
radii : and on this account some degree of consideration may 
perhaps be attached to another paper of mine, presented to 
the Society about the middle of July last, in whieh an attempt 
is made to accomplish the object here mentioned. 
Oct. 30, 18 j 1, 
