574 



that do not belong to the Peak of Teneriffe, but which grow 

 at the indicated heights on the mountains of the neighbour- 

 ing islands,, are placed between two parentheses. An S. 

 (Smith) is added to the new species, which will be published 

 by Messrs. von Buch and Smith. A cross placed at the end 

 of a word marks the superior limit of a plant, that at which 

 it ceases to grow. 



I shall mention some other ideas, for which I am indebted 

 to the communications of Mr. von Buch, and which will 

 serve to rectify what I have stated in the second chapter of 

 this Narrative. 1 eagerly seize every opportunity of rec- 

 tifying this work from the report of learned persons, who 

 have visited the same places, and who have remained in 

 them longer than myself. " The Canarian pine (vol. i, p. 

 268) is certainly a new species, till now unknown to the 

 botanists of Europe. The dragon-tree (ib. p. 142) does not 

 appear to belong to the East-Indies, as Linneus believed; 

 it is found wild near Iguesta, 170 or 200 toises above the 

 level of the ocean. The thorny plant of Lancerota, which Mr. 

 Broussonet had taken for a sonchus (ib. p. 236 note), is the 

 prenanthes spinosa. The volcano of Lancerota, which I had 

 judged to be 300 toises high from angles which I took when 

 under sail (ib. p. 82), is the Corona, the elevation of which, 

 according to an extremely accurate barometrical measure- 

 ment, is 292 toises. The height of the town of Laguna which 

 had never been exactly determined (ib. p. 120 j and vol. ii, 

 p. 178), is 264 toises. No circular wall of lava prevents en- 

 tering the crater of the Peak of Teneriffe on the northern and 

 western side. What I said of this wall, and the analogy be- 

 tween the summit of the Peak and that of Cotopaxi (vol. i, p. 

 169), does not appear to be accurate. No subsequent ob- 

 servation has confirmed the assertion of Mr. Broussonet (ib. 

 p. 235), that the island of Gomera contains a nucleus of gra- 

 nite and mica-slate ; but Mr. Escobar, a learned Spanish 

 mineralogist, has found in the island of Fortaventura a block 

 of primitive syenitic rock. It is a mass, the basis of which 



