( xSx ) 
that it cannot be drunk in them, but by thofe of a hardy ConfUtu* 
t on without fome hazard of Health. Nor is it fafe for Men to 
continue longinany of them. If a Paper be Hack up m onoof 
thefe Grotto’s*, ’tls always bandied to and again with the VVjikI. 
They are remarkably warm inthe Winter *, but in the Dog U.iys 
fo exceOive cold, that in fome of them one is fcarce able to con- 
tinue halt an Hour. It’s nofmall Labour in the building thde 
Grotto’s, to find out the or Vent-ho.es, whereof there 
are either one, or two, or three, and feldom more in eachCd ar. 
The molt cold are thofe which have their Vent from above. They 
who enter them Sweating, fometimes catch Agues, ordfefome 
other Fever. On account of the V'apours being coileued into 
Drops, the Locks, and any other Irons of the Doors, become 
Wet on the change of Fair Weather to Rainy. The Liqijor in- 
cluded in a Thermometer defeended in thefe Cellars remarkably ; 
and in the Barometer, the Mercury afeended a ..cruple and a 
half. 
IV. Having fome Years f\nctVuh\\ 9 [i'dhh Specimen Lithograp^^^ 
Helvetica, and perhaps defigning a his Obfervations 
on Figur’d FolTils arc not fo numerous as welhould other wile have 
wifii’di which defea he makes amends for, by taking notice of all 
the other MINERALS that anywhere occurr’d^ which tho IVc 
reduced to a Catalogue, I omit fending you at prefent, as not ha- 
ving time to Tranfcribe it. , . 
TheSrr^uof Foffils he tells us, in their Mountains, are not Ho- 2.;. 4 ^- 
rizontal, but generally inclining towards the South, He takes 
notice that the Mines at the SCHAMS, and elfewhere among the it. 2. ?. 2?. 
Crifons (the Iron-works excepted) are rarely found in continued 
Veins i but that the Oar lies fcatter’d in Lumps at uncertain Di- 
ftances *, nor are they here, as in the Rich Mine Countries of Hun- 
7(iYy and Saxony, found in the deep Bowels of the Mountains, but 
near the Surface of them; a Particular Inftance whereof he gives 
us of the Mines near JNDER, where the Oar next the Surface is 
well known to be confiderably richer, than that which lies thir- 
teen Fathom deep. He alfo affirms, that the Grounds where thefe 
Oars are, in this Countrey, are exceeding fertile , whereas 
in Saxony and Hungary fuch places are generally barren ; the Grafs 
beinc^ flirivel’d up by the Exhalations of their Rich Mines, which 
the "aIvs do not feem to abound with ^ and where thofe they have, " ' 
^ Z the 
