of tke Pyrites. 8^ 



pofTefllon ; and many other inftances I have 

 obferved of the production of ores and pyrites^ 

 even lately : as, a /inter from the territory of 

 Hohenbircke, from the greateft depth hitherto, 

 reached, exactly overlaying a dru/y lead glitter, 

 and the latter, a /inte?\ and this /inter ^ lead-glitter \ 

 as fo many pebbles, or buttons, artfully accreted 

 to each other. I am pofTefTed of a/inter, whereon 

 the pyrites is vifible, and in particular, the cop- 

 pery -, nor do I doubt but many more fuch in- 

 ftances may be hereafter met with, when appli- 

 cation is made to thefe fubjects, with more ac- 

 curacy and attention ; — fo thzt/nter is ftill at this 

 day produced in places where before there was 

 none. 



It may feem needlefs to mention particular in- 

 ftances of this kind, feeing earth is known to be 

 derived from water, and (tone from earth. Exam- 

 ples of waters yielding ftone are very numerous. 

 The Caroline waters at the Prudel depofite a 

 whitifh, intermixed with a flefh- coloured, and 

 throw up a yellowifh ftone, firm enough to bear 

 working and polifhing, like marble ; and that in 

 fuch plenty, that the inhabitants are, at times, 

 obliged, not without great labour, to remove it, 

 to prevent its choaking up the fpring. At Me- 

 rana, in the County of Schonberg in Mifnia, 

 there is a ftone-quarry, where we have a plain in- 

 ftance of the fame fort : the ftone is done over as 

 with fo many crufts of ice, and directly beneath 

 the under-turf earth huge marTes of /inter are dug 

 up. Sinter continues growing fo long as that fort 

 of earth, whereof it confifts, is conveyed to it by 

 the waters, and the free accefs of the waters not 

 interrupted by the entire concretion of the fiflure, 

 or by other accident. The firft is evident from 

 all the abovementioned inftances \ in particular, 

 the Caroline ftone, which may be daily obferved 



G 3 accreting 



