VOL. v.] PHILOSOPHICAL TRANSACTIONS. 451 



springs are so numerous, as to afford convenient baths ; two within the town, 

 five without the wall, and two beyond a rivulet called Swechct. 



The Duke's bath is the largest, about 20 feet square, in the middle of a 

 house of the same figure built over it. The vapour passes out through a tun- 

 nel of wood at the top : and the water is conveyed into the bottom of the bath, 

 at one corner, through wooden pipes and trees, under the town-wall from 

 the spring head, which rises at a little distance westward. The springs of the 

 rest of the baths rise under them, and are let in through holes of the flooring, 

 for all the baths are wainscoted, the seats, sides, and bottoms being made of 

 fir. The water for the most part is clear and transparent, yet somewhat bluish, 

 and makes the skin appear pale in it, as the smoke of brimstone does. It dis- 

 colours all metals (except gold, whose colour it also heightens) turning them 

 black in a few minutes. The coin of this country, mixed of copper and silver, 

 (having -j^ of silver, and -^ of copper) is in a minute changed from white to 

 a dark yellow, and soon after becomes black. To the moss and plants which 

 it washes it gives a fine green colour, and leaves often a scum upon them of 

 a purple mixed with white. As it runs from the spring head, it somewhat re- 

 sembles the sulphur river in the way from Tivoli to Rome, but is not so strong 

 or stinking, nor does it incrustate its banks. 



The spring head rises under a rocky hill, at some distance from the entrance 

 into it : for I passed to it, about the length of 40 yards, through an arched 

 passage cut in the rock, which is also a natural stove, (as that of Tritola and 

 Bajae) made by the hot bath water running under it. Most part of this cave is 

 incrustated with a white substance, by them called saltpetre. At the mouth of 

 the cave it becomes harder and stony. I caused some of the pipes, through 

 which the bath water runs, to be opened, and from the upper part of the pipe 

 I took some quantity of fine sulphur in powder, somewhat like flower of brim- 

 stone ; this being, as it were, sublimed from the water, and not deposited, be- 

 ing found in the upper part of the pipe. Oleum Sulph. per campanam dropped 

 into this water, is received into it quietly. Oleum tart, per deliquium causes 

 an ebullition, as in the making of tartarum vitriolatum. 



The second bath within the wall is that of our Lady, about 12 feet broad, 

 and 24 long. One end of it is under a church of the same name. This is 

 fuller of sulphur than the rest, and more blue, and leaves a yellow flower on 

 the boards, as the others do a white one. The third is the new bath, out of 

 the town, near the gate ; which when I saw was full of people singing. The 

 fourth, the Jews' bath, which has a partition in the middle, to separate the 

 men from the women. The fifth, St. John's bath, of a triangular form. The 

 sixth, the beggars' bath, always shallow, so that they lie down in it. The se- 



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