BATH WATERS. 301* 



brought up with the springs, which only swims on the Early examina* 

 top, or else continues at the bottom, but never is dis- tion of the 

 solved in the waters themselves. ^**^ water* 



*' Neither is sal armoniack, as some imagine, to be 

 found in these waters, for if on the solution of sal armo- 

 niack, salt of tartar be injected, the purely saline volatile 

 salt (of which sal armoniack in part doth consist) being 

 at liberty from the acid salt, to which it was formerly 

 united, will presently fly off into the air, and will quickly 

 be discovered by a pungent affecting the nostrils, which 

 is never obsei ved in the Bathe-waters. 



'' Lastly, as to vitriol, the Crosse and Hot Bathe 

 seem to have none at all; for if galls are beaten and in- 

 fused into these waters they neither turn purple nor 

 black, which would certainly be, if these waters had 

 vitriolln them, 



^' The King's Bathe seems to have a little vitriol in it; 

 for if some beaten galls are cast into that water, it will 

 have a light tincture of a black purple colour. 



" 'Tis also to be noted, that a certain mineral of a 

 metallick nature ariseth out of the earth, with springs of 

 the Bathe, which is easily turn'd into vitriol. For if any 

 acid liquor be affuscd on the sand, (which breaking out 

 ■with the springs, is found in the bottom of the Bathe,) it 

 being corroded with an acid menstruum, not without a 

 remarkable effervescence, will in part be converted into 

 vitriol, just as |t happens to the filings of iron corroded 

 with an acid liquor. 



" For if that sand of the Bathe corroded with an acid 

 liquor, be put into the infusion of galls, the liquor ac- 

 quires an atro-purpureous colour. Whereas if the infu- 

 sion of galls be put on the sand newly taken out of the 

 bathe, aind not corroded with an acid liquor, it will, by 

 no means, be of a purple colour ; an apparent sign, that 

 the metallick sand of the Bathe, unless corroded with an 

 acid menstruum, doth not turn to vitriol. 



'' It is further observable, that the sand of the bathe 

 kept some time, and exposed to the open air, will of its 

 own accord be converted into vitriol; for if that sand 

 be mixed with the infusion of galls, the water will contract 

 an atro-purpurcous appearance. ^ 



^^ Bloreover, 



