of €lecm'cttj>t 19 



upon for more than one reafon > for 

 if we had chafed the flat fide 5 the 

 Amber could not have approached 

 the body it had been rub'd on with- 

 out making a change of place in the 

 whole Eleftric^ and, which is worfe, 

 without making it move ( contrary 

 to the nature of heavy bodies) 

 fomewhat upwards 3 whereas the 

 Amber having, by reafon of its fu£ 

 penfion, its parts counterpoifed by 

 one another 5 to make the excited 

 edge approach to another body, that 

 edge needed not at all afcend, but 

 onely be moved horizontally , to 

 which way of moving the gravity of 

 the Ele&ric ( which the ftring kept 

 from moving downwards) could be 

 but little or no hinderance. And a- 

 greeably to this we found, that if, as 

 foon as the fufpended and well 

 rubb'd Ele&ric was brought to fet- 

 tle freely, we applied to the chafed 

 edge^ but without touching it, the 

 lately mentioned Cufhion, which, by 

 reafon of its rough Superficies and 

 porofity, was fit for the Ele&rical 

 B 3 Effin- 



