1814.] 



and on Vegetation, 



115 



Article VII. 



Some Account of' the Mountains of ancient Lalium, in which 

 the Mineral called Haiiyne is found. By Leopold Gmelin, 

 M.D.§ 



(With a Map.) 



Haiiyne is found partly in the volcanic tuff called peperino, 

 and partly in the soil that covers it. 



Peperino is a soft fragile stone, very fit for building, of an earthy 

 texture, and not heavy. It seems to consist of a congeries of very 

 different bodies, particularly fragments of augite of a dirty green, 

 dark green mica, iron sand, compact limestone, basalt, and a kind 

 of lava very much resembling pumice. These seem to be agglu- 

 tinated by an eaitby cement. Sometimes it contains fragments of 

 stones. 



These fragments are always sharp-edged, generally small, but 

 sometimes weighing several pounds, especially those consisting of 

 basalt and limestone. 



Sometimes, though rarely, fragments of felspar, and a sco- 

 reaceous matter of a dark green colour are mixed with the peperino. 

 Bur as far as I know it never contains melanite. 



What I regard of considerable importance with respect to the 



• In Land, according to Ncnzelitu ami Scheumacher. 



+ Annul ii.' ii> the nli-i-i -valiant kepi fni SO yean at the Observatory. 



' According In I he n-juli of Ave yean' observation! by lb . Nuezen, 



s \0.liui i v.l from li . Tin-. i. laielv puUUhsd ai Heidelberg. 



II 2 



