Views of nature: or Contemplations on the sublime phenomena of creation / with scientific illustrations

by Alexander von Humboldt

[T]. Compare Erman’s Reise um die Erde, Abth. i. Bd. 3, s. 8, Abth. ii. Bd. 1. s. 386, with his Archiv für Wissenschaftliche Kunde von Russland, Bd. vi. s. 671.

[U]. See my Essai polit. sur la Nouv. Espagne, t. ii. p. 314.

[V]. Frémont, Geographical Memoir upon Upper California, 1848, p. 6.

[W]. Report, p. 274 (or Narrative, p. 300).

[X]. Compare Frémont’s Report, pp. 164, 184, 187, 193, and 299, with Nicollet’s Illustration of the Hydrographical Basin of the Upper Mississippi River, 1843, pp. 39–41.

[Y]. Compare my Relation Historique, t. iii. p. 234, and Nicollet, Report to the Senate of the United States, 1843, pp. 7, 57.

[Z]. Nicollet, op. cit. pp. 99, 125, 128.

[AA]. Maximilian, Prinz zu Wied, Reise in das innere Nord-Amerika, bd. i., 1839, s. 443.

[AB]. See Cosmos, vol. ii. p. 674 (Bohn’s edition).

[AC]. Historia general de las Indias, cap. 214.