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I afterwards endeavoured, for my farther fatisfa^lion, to difcover, 

 if poffible, how many faUne particles would be produced from a 

 lingle leaf of Tea, but having reckoned up only a part of the vo- 

 latile falts contained in one leaf, I forbore any farther obfervations, 

 becaufe the number I had already reckoned up was fo great that I 

 durft not publifli it, as I had purpofed to do. And, indeed, many 

 perfons could not believe that the leaf itfelf could be divided into fo 

 many parts, vilible by the microfcope, as I faw volatile faline par- 

 ticles produced from one lingle leaf. 



Moreover, I took the caput mortuum, cinder, or aflies of Tea, 

 on which I poured clear rain water, in order to extract the fixed 

 fait it might contain. After this water had flood on it one, two, 

 and fome of it three days, I poured it off as clear as poffible, and ex- 

 pofed it to the air to evaporate : I then obferved in it many parti- 

 cles of what I before mentioned to be volatile fait ; thefe were not 

 only covered, as it were, with a watery moiflure, but many of them 

 I faw lying in the water, fo that 1 was convinced they were particles 

 of volatile fait, which had been fo clofely united to other falts, and 

 to the caput mortuuum or alhes, that the fire I had applied had not 

 been ftifficient to expel all thofe particles of volatile fait. 



As I concluded that the watery moiflure which did not evaporate, 

 and in which the before named faline particles lay, was nothing 

 but a parcel of falts, though I could not diftinguifli their figures ; I 

 applied fome heat to it, and I immediately perceived that, in fad, 

 the moifture was for the moft part fait, for it concreted in irregular 

 faline particles, and in fuch numbers that the fubftance became white. 

 But foon after it again changed into a fluid and tranfparent liquid, 

 like water. But after I had fuffered this liquid to fiand a little 

 longer, 1 perceived various faline particles of fix fides formed in it, 

 which are reprefented at fig. 14, R. Among thefe, many were fo 

 fmall that they almoft efcaped the fight, even though affifted by my 

 very befl microfcopes. I alfo faw fome few exceeding minute faline 

 particles, with figures of four fides. 



