NOTES. clxxi 



stone quarries at the foot of the Cotopaxi. What have been formerly described 

 in these as sanidine are crystals of oligoclase. 



( M9 ) p. 440. Roth, Monographic des Vesuvs, S. 267 and 382. 



( C2 ) p. 440. See above, Anm. 82 ; English edition, Note 606 ; Rose, Eeise 

 nach dem Ural, Bd. ii. S. 369 ; Bischof, Chem. und physik. Geologie, Bd. ii. S. 

 528 571. 



C 521 ) p. 441. Gilbert's Annalen der Physik. Bd. vi. 1800, S. 53 ; Bischof, 

 Geologie, Bd. ii. S. 22652303. 



C 532 ) p. 441. The later lavas of Vesuvius do not contain any olivine any more 

 than any glassy felspar ; Roth, Mon. des Vesuvs, S. 139. The lava-stream of 

 the Peak of Teneriffe of 1804, which has been described by Viera and Glas, is, 

 according to Leopold von Buch, the only one which contains olivine. (Descr. 

 des lies Canaries, p. 207.) I have shown elsewhere (Examen critique de 1'His- 

 toire de la Ge'ographie, t. iii. p. 143 146) that the statement that the eruption 

 of 1704 was the first since the conquest of the islands at the end of the 15th 

 century is erroneous. Columbus, in his first voyage of discovery, in the nights 

 from the 21st to the 25th of August, when about paying a visit to Dona Beatrir. 

 de Bobadilla, in the Gran Canaria, saw the fiery eruption in Teneriffe. In his 

 Journal, under the heading " Jueves 9 de Agosto," which comprises intelligence 

 up to the 2nd of September, it is said, " Vieron salir gran fuego de la Sierra de 

 la Isla de Tenerife, que es muy alta en gran manera ;' Navarrete, Col. de los 

 Viages de los Espanoles, t. i. p. 5. The above-named lady is not to be con- 

 founded with Dona Beatriz Henriquez of Cordova, the mother of his illegitimate 

 son (the learned Don Fernando Colon, his father's historian), whose pregnancy 

 in the year 1488 contributed so materially to retain Columbus in Spain, and 

 thus to occasion the New World to be discovered for Castillo and Leon, and not 

 for Portugal, France, or England. (Comp. my Exam. crit. t. iii. p. 350, 367.) 



( 623 ) p. 441. Kosmos, Bd. iv. S. 276, English edition, p. 230. 



( 624 ) p. 441. An important part of the rock-specimens collected by me 

 during my American expeditions has been sent to the Spanish Mineralogicai 

 Cabinet, to the King of Etruria, to England, and to France. I do not refer to 

 the geological and botanical collections possessed by my noble friend and fellow- 

 labourer Bonpland, by the doubly sacred right of personal collection and dis- 

 covery. Such a wide distribution of collected materials, when (by means of very 

 precise notice of the localities in which each was found) the preservation of 

 groups in geographical respects is not prevented, offers the advantage of facili- 

 tating the most varied and strict examination of the mineral species whose 

 habitual association characterises the rocks. 



