257 



entirely uncultivated, to the south of Icod, near 

 the village of Guia, the ancient Isora. This 

 mountain, backed by the Peak, was at all times 

 considered as an extinguished volcano. Though 

 formed of solid matter, it is with respect to the 

 Peak, what Monte Rosso, which appeared in 

 1661, and the Boche nuove of 1794, are to Ve- 

 suvius and Etna. The eruption of Chahorra 

 lasted three months and six days. The lavas 

 and scoriae were thrown out by four mouths, 

 placed in the same line. When the lava had 

 gained three or four toises in height, it advanced 

 three feet every hour. This eruption took place 

 but a year before my arrival at Teneriffe, and 

 had left a durable impression among the in- 

 habitants. I saw at the house of Mr. Legros, 

 atDurasno, a drawing of the mouths of the Cha- 

 horra, which he had taken on the spot. Don 

 Bernardo Cologan had visited these mouths 

 eight days after they were opened, and he had 

 described the principal phenomena of this erup- 

 tion in a memoir, of which he gave me a copy to 

 insert in the narrative of my travels. Thirteen 

 years having elapsed since that period, and Mr. 

 Bory de St. Vincent having preceded me in the 

 publication of this memoir, I refer the reader for 

 it to his interesting Essay on the Fortunate 



tion took place, is called Chazajanne. See Nicolas de Segun- 

 do de Franqui, in Cavanilles y Hergen, Annales de Historia 

 natural, t. i, p. 298. 



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