ITALY. LETTER VIII. 93 



34. Pozzo , a fhaft. 



35. Polzevera; a Gabbro or Serpentine, with 

 limeflone, marble, or calcareous fpar-veins, or 

 the Ophites of Cronftedt (Miner. 261.) found 

 in large beds in the Gabbro-hills. La valle di Pol- 

 zevera, in the Genoefe, is called fo on account of 

 the fine red, black, and green, white-veined pol- 

 zevera-quarries. 



36. Rilegatura ', a failure filled with quartz or 

 fpar, or a metallic vein. 



37. Rognoni. See Piombo. 



38. Saffi matti'y Galeftri mouldering in fcnall 

 bits. 



39. Saffo morto. See Pietra morta. 



40. Scagliola ; white tranfparent felenites. 



41. Scintitte', metallic flakes. See Piombo. 



42. A Spruzzi. See Piombo. 



43. Sterri d'anticbe Cave-, the rubbrfh of old 

 mines or bings. 



44. Tahhine pietre-, every glimmer or mica- 

 ceous Hone. 



45. Variolarie ; blunted and detached flones ; 

 efpecially Gabbro, whofe furface is knotty. 



They have ferved in former times as fuperfti- 

 tious amulets to children againfl the fmall-pox; 

 and accordingly they are ftill at prefent kept by 

 feveral jllalian apothecaries. 



I have 



