p^oDutttonofCaft^ 15 



take notice, how deep the particles 

 of thefe Cryftals may pierce into the 

 fpungy organs of Taft, fince, if one 

 does but touch the pulp or nail of 

 ones finger., (firft a little wetted with 

 fpittle or otherwife,) with the pow- 

 der of thefe Cryftals, they will fo 

 penetrate the bkin or nail, and ftick 

 fo faft there, that you cannot in a 

 reafonable rime wafh the ftainoffof 

 the skin, and much lefsoffof the nail, 

 but it will continue to appear many 

 hours on the former, and many days 

 on the other. 



EXPER. VI. 



Of an iftfipid Body arda highly corrofae 

 one, to make a Sub fiance as fweet as 

 Sugar. 



THis is eafily done, by putting 

 upon good Minium purified A- 

 tjua fortis or Spirit of Nitre, and let- 

 ting them work upon one another 

 in a gentle heat, till the liquour have 



difloi- 



