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PREFACE. iii 4 , tnmeralogifts to petrifactions. In this path he Was followed by Johnftonein hisNotitiae Regni Mine'ralis, publilhed in 1667, an d by the well known jefuit Athanafius Kircher, in his Mundus Subterraneus, publilhed at Amfterdam in x 678- Some years afterwards Woodward publilhed his Catalogue of Minerals. He may be confidered as the firlt Englilh mineralogilt of note. Becher, in his Phyfica Subterranea publilhed at Leipfic in 1708, endeavoured to arrange minerals ac cording to their conftituent parts. He was the firll writer who propofed the opinion, that the difference in compofition of earths and Hones might be employ ed in their arrangement and difcriinination. He «dfo firll introduced the divifion of metals into per fect and imperfect. Brotnel in his Catalogus Generalis rerum curiofo- runi, publilhed at Gothenburg in 1698, retained the c ertan divilion of metals into perfeCt and imper- eCt, and arranged fulphur and bituminous bodies in the fame clafs. . In the be ginning and towards the middle of the eighteenth century Beyer*, Buttnerf, and Scheuch- er I, employed themlelves principally in the invelti- f & n t ^ aC * ntere ^ing clafs of bodies, petri- °ns, ahhough their works are disfigured by many ■ 4- Norica. Nuremb. 1758. t ineralogia « Orjftographia Helved*. Zurich 1718. :;r m Ludg * Batav - i1 ^ H ° m ° ^ t Buttaer Ruderi Diluvii teftea. a 2 foolilh