176 f RAVELS THROUGH 



former times, has been a magnificent refervoir of 

 frefli water. 



Pifcbiera d'Agojlo. 



Capo e porto di Mifeno. 



Near the. Solfatara and the Pifciarelle, is Lago 

 d'Agnano, an old volcanic crater; and juft by 



/ Sudatori di S. Germano, being rooms cut in- 

 the tufo, and remarkable for their hot fprings. . 



Qrotta del cane is a fmali cavern in a lava-hill,- 

 which deferves notice, the other grottos being 

 in tufo. It is about a man's heighth, and about 

 four paces in length , fituated clofe to Lago d'Ag- 

 nano, which is a funk crater of an old volcano, 

 having the form of an amphitheatre, and being 

 inclofed by cinericeous and lava hills. The grotto 

 is cut in a part of this rocky inclofure, and is 

 renowned for the killing damps, which rife from 

 its ground about a palm above its floor, move 

 along it as a white fmoke, and fpread through the 

 door in the open air. Thefe damps are faid to be 

 acid and fuffbcating as the acid of common fait ; 

 and, according to their effects, their dangerous 

 quality feems to arife from a \vant of elafticity in 

 the air, which alone is fufficient to fuffocate a 

 dog or other animals forced into them for a long 

 while ; becaufe, being but a fliort time expofed to 

 thefe damps,, and immediately after brought into 

 open air a or thrown iif the Lago d'Agnano, they 



quickly 



