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PAGE. 



Of iron - 240 

 The arbor martis* a germination of iron, resembles a 



natural plant - ib. 



Various experiments - 241 



5. Of steel - - 243 



6 Of quicksilver: its singular properties ib. 



Copper and iron, gold and copper, silver and lead, tin 



and lead, frequently found in one mass 244 



7. Of mines in general - - 245 



8. Of mundic - - ib. 



9. Of the fissures of the earth ^ - 247 



10. Of salts - 249 



Remarkable sait mines in Poland - - 250 



11. Of stones ib. 



12. Of petrifying springs 252 



13. Of copper springs 254 



14. Of lime - 258 



15. Of precious stones - - 259 



16. Of the loadstone - - 262 



17. Of inflammable fossils 266 



18. Of amber 267 



19. Of linum as bestum ib. 



