98 s>f tf?e $&tt%mml ©tfgt'ne 



EX PER. XX VL 



I Have formerly deliver'd fome In- 

 ftances of the Iocalefcence pro- 

 duct by water in bodies that are 

 readily diffolv'd in it^ as Salt of Tar- 

 tar and Quick-lime. But one would 

 not lightly expert, that meer water 

 fhould produce an Incalefcence in 

 folid bodies that are generally grant- 

 ed tobeinfolublein it 5 and are not 

 wont to be, at leaft without length 

 of time , vifibly wrought on by it i 

 and yet trial has affured me 3 that a 

 notable Incalefcence may be pro- 

 duced by common water in flower or 

 fine powder of Sulphur, and Filings 

 of Steel or Iiqn. For when , in 

 Summer time, I caus'd to be mingled 

 a good quantity , ( as half a pound 

 or rather a pound of each of the In- 

 gredients ) and caus'd them to be 

 throughly drenched with common 

 water 5 in a convenient quantity 

 whereof they were very well ftir* 



red 



