l62 TRAVELS THROUGH 



able, fince the houfes and rooms, which have been 

 dug out, are but fmall. They have been covered, 

 not as commonly is imagined by lava-torrents, bu 

 by allies and pumice-flones thrown like fnow- 

 fhowers upon them. 



Pompeja is buried in grey afhes, covered after- 

 wards by black ones. Small grey pumice-ftones, 

 and white fmall garnet- Iherls, moft part farrina- 

 ceous, are common in both. Thefe aflies ihe-w 

 fome effervefcence with acids, and have been, by 

 length of time, coagulated or ferruminated into a 

 volcanic tufo, which is common too in many hills 

 about Naples. Almofl all the whole city is difco- 

 vered, fo that you may walk into its ftreets and 

 into its houfes, which have no roofs. They have 

 difcovered the gate of the city, and even the hinges 

 and hooks upon which the gates moved. The 

 ftreets are paved with Vefuvian lavas. There are 

 on. both fides rifing foot-paths; and in the middle 

 pavings you difcover the tracks of the waggons. 

 The houfes are built with lime, and the following 

 ftones. i. With calcareous tufo-ftone and ofleo- 

 colla, from Sarno near Pompeja % or the calcareous 

 Apennines, running towards Salerno and Apulia. 

 2. With old black lava, containing white fherl- 

 garnets. 3. With old grey or yellow volcanic 

 tufo, containing plenty of grey pumice-ftones. 

 4. With red porous pumice-ftones, containing 



fmall 



