Rare Books

The natural history of Hartz-Forest, in His Majesty King George's German dominions : Being a succinct account of the caverns, lakes, springs, rivers, mountains, rocks, quarries, fossiles, castles, gardens, the famous pagan idol Pustrich or Spit-fire, dwarf-holes, pits, moving islands, whirlpools, mines, several engines belonging to them; ores, the manner of refining them; smelting houses; several sorts of ovens, hammer-mills, vitriol and glass-houses, &c. in the said forest: with several useful and entertaining physical observations