?74 



APPENDIX. 



The following table Is conftrnfted in every refpedl the 

 fame as that defcribed page 163, and dlflters from 

 it only in having an additional column, in which is given 

 the rate of acceleration of the Pendulum in twenty-four 

 hours, according to the time by the watch, corrected by 

 a mean of fixteen altitudes of the fun taken on the 15th, 

 and a mean of thirty-nine altitudes on the 18th of Auguft, 

 from which the watch appears to have loll, during the in- 

 terval of the three days, at the rate of 2 2>'\'J per day. The 

 rate of acceleration of the pendulum in twenty-four hours 

 being thus determined, agreeable to the acceleration ob- 

 ferved in each of the lafl: eight periods, being thofe of the 

 longeft duration ; and thefe obfervations being already 

 correded for the thermometer ; a mean is taken from the 

 whole as the true rate of acceleration of the pendulum on 

 mean time in twenty-four hours. 



TABLE 



