of fyeat ant) dolti. 15 



The fucccfs of this Experiment 

 upon a fecond trial ferv'd to confirm 

 it, which is the more ftrange 3 becaufe 

 I have found, that a fmall quantity 

 of Oyl of Vitriol, not beforehand 

 mingled with water, would produce 

 a notable heat in its conflict with a 

 fmall portion of jufl: fuch Salt as I em- 

 ployed before ( both the parcels ha- 

 ving been, if I well remember, ta- 

 ken out of the fame Glafs. ) And 

 this heat did upon trial, made with 

 the former Thermofcope, make the 



^tin&ed Spirit afcend much further 

 than the lately recited Experiment 



• made it fubfide* 



* 



