80 £>f t$e ggtec&antcal flDiigine 



been put 5 for this Menftruum , pre- 

 fently mingling with the water that 

 adher'd to the ice, produc'd in it a 

 brisk heat , and that fometimes 

 with a manifeft fmoke , which nim- 

 bly diflblved the contiguous parts 

 of Ice 3 and thofe the next , and fo 

 the whole Ice being fpeedily re- 

 duced to water 9 and the corrofive 

 Menftruum being by two or three 

 (hakes well difperfed through it, 

 and mingled with it, the whole mix- 

 ture would grow in a trice fo hot 5 

 that fometimes the Vial that con- 

 tain'd it, was not to be endured id 

 ones hand* 



EX- 



