326 TRAVELS THROUGH 



is to fay, the diameter of the columns was rhom- 

 bo'idal ; however, there are fome of a rectangular 

 parallelepiped form ; their length different, from 

 a few inches to above three feet Swediih meafure ; 

 their diameter fix inches and more. Many of thefe 

 columns appeared erected along the road, as the 

 bafalt-columns near Bolzena. The darknefs of 

 the night hindered me from obferving how far 

 thefe porphyry-hills continued , but I am certain 

 I obferved them about one German mile and a 

 quarter along the road between Newmark and 

 Brandfol. 



The next morning I found near Brandfol flate 

 mountains, partly argillaceous mixed with glim- 

 -mer, that is to fay, gneifs, partly quartzous. 

 Jn fome places I obferved found dark-coloured 

 horn-Hate, penetrated with iron. Then fucceeded 

 fome mountains, which confifted of grey, found, 

 opaque quartz, fprinkled with fmall black, or 

 blackim-green fherl-cryftallizations. Afterwards 

 gneifs, or horn-flate hills, which continued to 

 Brixen. Detached Granite is common near the 

 roadi 



Beyond Brixen, mountains of grey Granite or 



Granitello appeared, confiding of quartz mixed 



with mica or glimmer, either in lumps and ipots, 



or in crofiing itripes, The fcld-fpath in it is fcarce, 



J if 



