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quor is afcrib'd D might be extra&ed 

 and imbibd , and fo the d/# freed 

 from them 5 then on the remaining 

 powder freth water was often pour- 

 ed^ that all adhering reliques of Salt 

 might be wafh'd off. After this, the 

 thus dulcified Calx y being again well 

 dried , was mingled with an equal 

 weight of powder'd Sal Arraoniac, 

 and having with a ftrongfire melted 

 the mafs the mixture was poured 

 out 5 and being afterwards beaten 

 to powder., having given it a com- 

 petent time to grow cold y we put 

 two or three ounces of it into a wide- 

 mouthed Glafs 3 and pouring water 

 upon it, within about a minute of an 

 hour the mixture grew warm 5 and 

 quickly attained fo intenfe a Hear 5 

 that I could not hold the Glafs in my 

 hand. And though this Heat did 

 not long laft at the fame height , it 

 continued to be very fenfible for a 

 confiderable time after* 



EX- 



