■s 



X 



3^4- 



LIGHT, HEAT, &c. 



Sect. XIII. 3. 5 



5, For the purp '^e of keeping a few flower-pots perpetually fub 

 jeft to more abundant electricity, Mr. Bennet of Wirkfworth in Der 

 bylhire affixed a fmall apparatus to the pendulum of a clock, as de 



fcribed below 



a 



pla 



but h 



s 



yet fufficicntiy attended 



determine its efted 



o 



--' 



/ 



I 



SECT, 



/ 



1 



