362 ON THE ERRORS OF CHRONOMETERS, &C. 



riation in its rate ; but were the rate of the chronometer taken 

 in various positions in the apparatus, and the position where 

 its rate was nearest a mean given to it for its permanent posi- 

 tion, then, I imagine, its rate would be uniform under all 

 magnetic dips, and under all ordinary changes of intensity. 



APPEN- 



