ITALY. L.ETTER VIII. 9! 



origin. 'The Eibenfifuk-foeties appears (Iriated as 

 a coarfe amianth. 



1 8. Inolitbo', ftriated gypfum. 



19. Iridi\ fmall quartz-cryftals of a black co- 

 lour, with pyramidal points on both fides. See 

 Mercati Metallotheca Vaticana. 



20. Lavatojo ; a wafh-work. 



21. Licafro; Wolfram. 



22. Litheofphoro ; phofphorefcent Bolognefe 

 gyps-ftone. 



23. La Machinai the water-engines, for draw- 

 ing ore and pumping water. 



24. Macigno ; a micaceous flone, confifting of 

 clay and fome lime ; appearing rather to be en- 

 tirely compofed of glimmer. In the uppermoft 

 ftrata it is fhivery, but very compact and hard in 

 a greater depth. Hence Petrarch's and other poets 

 fetti di macigno of their unyielding cruel fair-ones. 

 The colour and hardnefs is different. There is 



a. Tietra bigia \ grey yellow coloured by iron 

 ocher, refills the air, ferves for columns and walls. 



b. Pietra ferena, cchtmbina & turcbina \ blue- 

 grey, porous, likewife ferving for columns. They 

 are but varieties of the fame fort of (tone, and 

 often united in the fame work. Near Siena they 

 call macigno pietra di torre. Marfe. See Piombo. 



25. Nefritica pietrd; a green bacon-ftone or 

 fme<5tites. 



26. Pietra 



