34 



ETNA, 



[Ch. XXVI. 



C^'' 



i 



S"^ 



view of the same, whicli I sketched inlSSS, Avhen a nmcli more 

 copious stream of melted matter (part of the current of 1852) 



Eg. 85. 



A 



Modern lavas, as they appeared in 1828, descending the precipice called the Salto, 

 at the head of the valley of Calanna, and flowing round the hill of that name. 



A. Zoccolaro. 



B. Monte di Calainia. 



C. Plain at the head of the Yalley of 



Calanna. 

 a. Lava of 1819 descending the precipice 



caUed Salto della Griumenta, and flowing 

 through the vaney. 



&. Lavas of 1811 and 1819 flowing round tlie 

 hill of Calanna. 



same 



below. 



same 



Jlill of- Zoccolaro 



Pig. 86. 



Jlill of Calanna 



/ ' Mm 



Lava of^i852 



Lava of 1852 cascading down the precipice called Salto della Giumenta. 



precipice 



a, a. Portions of the face of the precipice 

 composed of rocks like those of Zoccolaro and 

 Calanna, which have not been concealed by the 



modern lavas. 



h. Lava of 1819 which flowed down and en- 

 crusted the face of the precipice. 



6 >&. Same lava passing round the pro- 

 montory of Calanna, together with the lava of 1811 and 1819. 



1811 which had follow^ed the same course. 

 c. Lava of 1852 which cascaded over tne 



-t^ 1 In 111 



c'. The same lava overflowing the level piau 



of the valley of Calanna. 

 c". Same lava flowing round the proinontou 



and covering parts of the older currents 



Both 



steep P' 

 ■ust, ' 



ci 



at se^ei 



a 



ti 



some 

 35° to i 

 stony 1 

 Incli 

 attest! 



may c 

 struct 



the e 

 narro 



whicl 

 tirou: 



dicida 

 tie 



1 



n\ 



TOd; 



I TVitl]: 



'J 



stone 



s 



tie 



pre 



of the I 



part sic 



Intl 



Map 

 In 



ac 





tie 

 i 



^iir. 



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