Dr. Herschel’s Obfervations , Sec. 
20 1 followed the foadow of the fatellite with great attention 
up to the center, in order to fecure a valuable epocha, which 
* ay ferve to improve our tables of the mean motion of this 
fatellite. 
itttT T TATV/T up'R^CHEL. 
Slough, near Windfor, 
November 3, 1729* 
