hiib.ri i;i nid's fparfis , qubiis euau.uis nuUa am- 

 plius luccreGat; figiiuni proxinum iiuiChicn i Gia- 

 ciem irtam, mareriam qiiandam eflc iutcr m cam u 

 talcum media n , fr abilcm , Barga a f,)fil)ribus di- 

 (flam , hac enira remota , Glacici (Irata iu conCpe- 

 (fliim veiiire , atqiic his al Litis , itcrum Bargam 

 fcqui , (ub qua deiiuo alia Micae ftiata fint ; fituin 

 ftratorum variu n eflb , nunc pcrpeixiicularem , nimc 

 varie ad horizontem inclinatum ^ denique ia ver- 

 t ce montium iUam rarifiitre rcper ri , fcvi copio- 

 f:im ct optimam aut in medio , aut circa r.idices 

 rup:um crefc-rc. His expofitis duierras Ipccies at- 

 que variitates Glaciei , varia nempe pcllucid:tate , 

 magiitudne et colore ditfcrcntis , Cl. Aud:( r rcceii- 

 fct et dari pdluciuilfimam , albam , v;ridcm , ni- 

 gram , rub^ginofam , n acnljtam , rtnatam , dari de- 

 mque ^ittaclu in fruda acuta coUalentem , rcfcrt : 

 flddit quoque rcn^d um Aetufl;;m ct rubiginofiim 

 puriticandi , ;ic vitimo loco fu.HH de gencfi huiuS 

 Micae explicat fcntenti;'.m : confiffere nimirum ma- 

 f ri.im iliius proximam in fubflantia terrea , a gy- 

 p(ca nc^n multum abhidentc , atc,ue I anc ab humi- 

 ditate fubtcrraica ita cmoU ri , folui tt clutr ri cen(tr, 

 vt leuioros dcinde partcs a^m portione fua acido 

 fiilna , crem' r s inllar , furfum e crgant atqne hac 

 rat'on( (urcciViue et pc (t longum tcmpus in laminas 

 illas concrtfcant , glaciemque conltituant. 



XII. 



