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

by Alexander von Humboldt

[BR]. Jacob Grimm, Gesch. der deutschen Sprache, 1848, Th. i. s. 227.

[BS]. Asie centrale, t. ii. pp. 18–20.

[BT]. Klaproth, Tableau hist. de l’Asie, p. 108.

[BU]. Annales des Mines, t. v. 1820, p. 137.

[BV]. Asie centrale, t. ii. pp. 16–55, 69–77, 341, 356.

[BW]. Baron von Meyendorff in the Bulletin de la Société Géologique de France, t. ix. 1837–1838, p. 230.

[BX]. Asie centrale, t. i. pp. xxiii et 118–159; t. ii. pp. 431–434, 465.

[BY]. Strabo, lib. ii. p. 68; lib. xi. pp. 490, 511; lib. xv. p. 689.

[BZ]. Montfaucon, Collectio nova Patrum, t. ii. p. 137.

[CA]. Compare Asie centrale, t. i. pp. xxiii et 122–138; t. ii. pp. 430–434, with Cosmos, vol. ii. p. 543, Bohn’s ed.