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their angles, in confequence of the decom- 

 pofition they have fiifFered by time and 

 the humid elements ; as it cannot be fup- 

 pofed that their globular figure has been 

 produced by iheir being rolled by the wa- 

 ters, fmce there is here no trace of either 

 river or torrent, and their decompofition is, 

 befides, very confiderable. 



Monte Rofib is an ifolated mountain, 

 about a mile and a half in circumference. 

 On one fide of it, there is at its foot an ex- 

 cavation which the Benedidine Monks of 

 Praglia caufed to be made, to obtain ftones, 

 but which has been for fome time abandon- 

 ed. Ihe fides of this cavity exhibit very 

 apparent prifms ; though not fo perfedly 

 characfterized as thofe before defcribed. 

 Should other parts of the m.ountain be dug 

 into, it is probable that other groups would 

 be difcovered. 



This certainly is not the only place pro- 

 du«5live of thefe figured ftones ; for we find 

 prodigious mafles of them at Monte Or- 



top,e, 



