282 Mr. Babbage’s new method, &c. 
series as those used by M. Poisson and myself ; unfortunately 
it is very short, and its illustrious author does not appear to 
have resumed the subject: possibly the erroneous values 
which it gives for the sum of certain series might have 
caused him to reject it. 
C. BABBAGE. 
March 25, 1819. 
