276 



LAVAS FROM ETNA. 



TJPPER 



Gallery. 



Table-case 

 in Recess 6. 



243. 



specular iron. 



244.— Lava, exhibiting partial fusion, with 



>/ 



mica, &c. 



245. — Mica, with olivine and augite. 



246. — Vesicular scoriaceous lava. 

 1819.) 



augite y 



(Erupt 



of 



247.— Twisted lava and scorle, from the great crater. 

 (Eruption of 1805.) 



248. — Basaltic lava with olivine, and crystals of glassy 



felsp 



(Eruption of 1836.) 



249. — Scoriaceous lava, with minute crystals of specu- 

 lar iron, from Monte Rossi. (Eruption of 1669.) 



250. — Lava, partially vesicular; from the desert region. 



" The desert region is a kind of plain covered with black 

 lava and scorias, from which springs the cone of eruption to 

 a height of about 1100 feet." 



251. — Vesicular scoriaceous lava, with crystals of 



glassy felspar. 



252. — Scoriaceous lava, from the Grotto Loneo. 



253. 

 in 1802. 



Scoriaceous lava, thrown from the great crater 



254. — Vesicular 



lava, in contact with augitic lava, 



from the desert region. 



255. — Four specimens of scoriaceous lava. (Eruption 

 of 1669.) 



256. — Basaltic lava, with augite and olivine, from 

 Licatia, above Catania. 



257.— Fragments of volcanic bombs, ejected from the 

 great crater in 1805. 



258 and 259. — Two specimens of volcanic bombs, from 

 the side of the great cone. (Eruption of 1838.) Presented 

 by Warington VV. Smyth, F.G.S. 



260— Vesicular lava, from the neighbourhood of 

 Monte Mompeloso. 



261— Scoriaceous lava, of the kind which overwhelmed 

 Malpesso in 1669. 





