[ 545 ] 
clofe Stove, from which he obtained five Pounds 
of Afhes 5 whereas the fame Quantity of the fame 
Wood burnt in the open Air, yielded only two 
Pounds. 
It is for this Reafon, that mod People who make 
Pot-afh, burn their Wood in Kilns, or Pits dug in 
the Ground; altho’ the Swedes burn it in the open 
Air, as the Author above- mention'd informs us. 
This firfl Step, or the burning the Wood to Afhes, 
feems to be taken by many for the whole Procefs 
of making Pot-afh ; for they who pretend to have 
learned this Art in RuJJia , as well as Lemery and 
iome other Authors, hardly give us any other Ac- 
count of it. 
But, in order to convert the Afhes, prepared in this 
or any other manner, to what is called Pot-afh, there 
are many different Ways praflifed in different Coun- 
tries, which make as many different kinds of Pot- 
afh, that arc all to be found in our Markets, and 
have all their refpeftive Ufes. 
ir The firft of thefe is commonly called Pearl- 
afhes by our People, who import great Quantities 
of it from Germany . This is no other than the 
lixivial Salt of Wood -afhes, extracted by making a 
flrong Lye of them, and by evaporating it to 
Drynefs, in a manner that is well known, and fuf- 
ficiently explained by Kmkelius in his Art of 
making Glafs, Boerhaave , and many others 5 fo 
that we need not infill upon it here ; we fhall take 
a more fit Opportunity to explain it, for the Ufe 
of our People in America. 
2. But the Art of converting thefe Wood-afhes into 
Pot-afh, without this tedious Procefs of Elixiviation, 
is 
