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Other Experiments of this fort 

 belonging lets to this place than to 

 another, I fhall here onely for ex- 

 ample fake take notice of one that 

 we made upon Quickfilver , which 

 is efteem'd the coldeft of Metals. 

 For haviag by ciiftilling from it four 

 times its weight of Oyl of Vitriol, 

 reduc'd it to a powder, which on the 

 account of the adhering Salts of the 

 Menftruum that it detain'd , was 

 white and glittering , we put this 

 powder into a wide-mouth'd Glafi 

 of water, wherein a feafd Wea- 

 ther-glafs had been left before it be- 

 gan manifeftly to heat the water, as 

 appeared by the quick and confider- 

 able afcent of the tin&ed Spirit of 

 Wine , that continued to rife upon 

 putting in more of the Magiftery 3 

 which warm event is the more re- 

 markable , becaufe of the obferva- 

 tion of Helmont , that the Salt ad- 

 hering to the Mercury, corroded in 

 good quantity by Oyl of Vitriol, 



