21(> 



ON THE LONGITUDE OF WASHINGTON. 



Thirty-two corresponding observations of the first limb, the mean resulting correction 

 from which, by weight, is 



— 7 s .81. 



WASHINGTON AND OXFORD. 



Moon's second limb. 



Thirteen corresponding observations of the second limb, the mean resulting correction 

 from which, by weight, is 



2. it 



Forty-five corresponding observations of both limbs, giving a mean correction, by 



weight, of 



— b* .25. 



