INDEX. 367 



Sea, its diminution ill-fupported by the Author, 32. 172, 173. 



increafes, or its level heightens, 32, 33. 172, 173. 



Sfguzer, at Nifmes, 21, 22. 



Seknites, lamellous, Vefuvian, 139, 



Seme Santo antico. See Arlecbino. 



Seme Santo di Sette loft, atitico, marble, 218. 



Serafini^ at Leghorn, 293. 



Seraruezza^ marble, 298. 



Serpentelo, Serpetiela, and Serparielo antico, marbte, 21$. 



Serfentine-Jlone. 



" Gratified at Cecina, 85. 



between limeftone and flate, 89. 



above lime at Impruneta, 275. 



alternating and mixed with clay and marl, 27^ 



alternating with Gratified Granitone, 90. 278. 



" found near Pietra Mala, 283. 



Ics Varieties : 



1. Dark-green white-fpotted. 

 At Cecina, 85. 

 AtPrato, 85. 



2. White. 



3. Black. 



4. Red, from Prato, 85. 



and Impruneta. 277. 



5. Yellow, at Impruneta, 277. 



feems to be an argillaceous ftone, 276. 



. but mixed with a particular alkaline earth, 276. 



- contains at Prato, 



1. Mica, a. black, 85. 



b. greenilh, at Impruneta, 277. 



2. Afbeft veins, at Impruneta, 277. 



Serpentine- 



