620 APPENDIX. 



and which I have at this time before me, " is bounded on the 

 south by the Bussagia, and on the north by the Marzolino; it 

 comprises the district of Ozani, and that of Girolata, which 

 collectively have an extent of about eight leagues and a half 

 square. The aspect of the country is extremely rugged and 

 "wild, especially in the district of Girolata: nothing is seen 

 but steep and arid mountains, the most elevated of which 

 form a line from east to west -, these are accompanied by other 

 small chains less lofty, resembling teats, which become gra- 

 dually of less height as they advance in amphitheatrical dis- 

 position to the sea, when they terminate in almost inaccessible 

 cliffs. The whole of this mountainous district is composed of 

 porphyrous rocks of different species, varying from each other 

 in colour, in the disposition of their constituent parts, in 

 degree of hardness, and the different state of oxydation of 

 the iron which generally predominates in them. 



<f These rocks are furrowed by long and large veins, some 

 of them more than sixteen feet in thickness, and of consider- 

 able extent. As these consist of a porphyry of greater hard- 

 ness tjian that which forms their bed, and which has under- 

 gone a change from time, they resemble large walls raised by 

 the hand of man. Many of these veins have globules in 

 them, varying in size and intensity of colour ; and as these 

 kinds of walls are sometimes very wide apart, they present 

 distinctions and a great variety in their form, and the dispo- 

 sition and shade of the colour of their globules. The vein of 

 the village Curzo is greyish ; in this the globules are very 

 large and of a somewhat rosy colour j while at Girolata the 

 ground is a blood red, and the globules of a less deep colour. 

 At a short distance from this last spot is seen a vein, the 

 globules of which are not larger than peas. The largest glo- 

 bules are found on two peaks of a sugar-loaf form : these 

 show themselves distinctly, and contrast perfectly with the 

 ground of the porphyry j they are three inches in diameter, 

 and most commonly four. 



" At La Bocca Vignola the whole surface of the soil is co- 

 vered with small balls in a state of decomposition $ at La 



. 



