(2010) 
the Earth, be fcorchedup and wither'd, nor pa(s into the 
pores of Plants. 
Sixthly^ he delivers the Artificial manner of Extrafting 
and Refining of Niter v after he had firft inforra'd his Rea- 
der^How it may be known^whether a place be impregnated 
with Niter or no ^ 
Seventhly^ he giveth the ^er/«e/ and Vfes of Niter 5 firfl 
in Thyjick,'^ where he afErras it to be not only Cooliftg^zt leaft 
by removing hot humors , whereby the Body may become 
cooler 5 but alfo Refo'vingyPurgatwe and Dinretical ; Upon 
the fcore of all which properties *tisufed not only in Burtnftg 
Fe^z/fr/jin theform ofthe £4^// frmell^^ (the preparation 
of which he defcribeth 5) but alfoln thofe DifeafeSjin which 
are to be difcharged by fiege and UrinCj hot,ftiarp3cholerick 
and obftrudiive humors. Having difpatched this Medici- 
nal u(e5he proceeds to the uft of Niter in Chjmifiry , 
where he obferveth that by it may be made a plea&nt and 
cooling Acid 5 or a hot and burning Corrofive thatfome- 
times it revives the Vomitive and Purgative vertue of An* 
ttmony^ fometimes it kills the Vomitive, and reviveth only 
thePurgativCjand fometimes it deftroyesboth^and quickens 
neither the Diuretick or Diaphoretick5&c. befides that it 
CalcinethjjSublimethand Diflblveth il//»er<^// and Metals, 
ihirdlyy he adds the life of Niter in Artillery ^ where he 
difoourfesofthereafon of the Compofition and Force of 
Gw^ pw^^r^together with the life and Office of every In- 
gredient of the fame. Fourthly and laftlyj he fets down the 
Ufes of Niter for Refiners ^Dyers and Cooks. 
JDVE KtIS EMEHT. 
T He Author of the Difcouife concerning Mineral vjattrs^m Numb.<^o. begin- 
ning^. i074,de{Ireth, that thefe lines may be inferted p. 1081. after the 
word Dyfenterhs, /.ip. viz* Neitherdol think this water any thing the worfe 
becaufeof the^/owje, but much the better for it in Hypochondriack maladies: 
For by its adftringency it defends the Tone of the Liver and the other natural 
parts, whichotherwifeareapt tolje debilitated by purging and penetrating 
medicines; it being, according to G^Ws advice, everncc^ary to intermix 
Tome Adftringents vsrith Hepatick remedies ; in Art. Med, c. p5, to which agree 
very good writers, antient and modern. 
ii W I: i a ;yx%^tsX. i^,iog6.i*z.t. if he hit, 
r- j^4miUb:;t3^| b:^T^:^ ON D^N, ■ jl: .^.i- a ; 
' Printed by r.ll. for Jo^ii Printer to the xdyo. 
