the Moon's Motion in Right Ascension. 



243 



stant quantity, and equal to 7*5 X 86636-555 (log=r 1-4927720); 

 and other quantities will be given that may still further abridge 

 the arithmetical operations. 



I shall now proceed to give an example of the use of this 

 formula and table, a duty which I hold to be incumbent on 

 every person who proposes any new ones for general use. On 

 the 9th of February 1830, the second limb of the moon was 



212 observed 



