ON" Tim IONCITfDE OF WASHINGTON. 



] 



Twenty-three corresponding observations of the second limb, the mean resulting. cor- 

 rection from which, by weight, is 



— G' .9(i. 



of 



Eighty correspondm:: observations of both limbs, giving a mean correction, by weight, 



— 3 9 .:;i. 



WASHINGTON AND HAMBURG. 



Aloon'. n first limb. 



VOL. \. — 15 



