[DZ]. Asie centrale, t. iii. pp. 195–205.
[EA]. Temperatur-tafeln nebst Bemerkungen über die Verbreitung der Wärme auf der Oberfläche der Erde, 1848, s. 95.
[EB]. See the admirable treatise by Samuel Forry, on The Climate of the United States, 1842, pp. 37, 39, 102.
[EC]. Forry, Op. Cit., pp. 97, 101, 107.
[ED]. Message from the President of the United States to Congress, 1844, p. 160, and Forry, Op. Cit., pp. 49, 67, 73.
[EE]. Fragments of the Nat. Hist. of Pennsylvania, P. I., p. 4.
[EF]. See Neue Berlinische Monatschrift, Bd. xv., 1806, § 190.
[EG]. On the vegetable remains found in the lignite formations of the north of America and of Europe, compare Adolph Brongniart, Prodrome d’une Hist. des Végétaux Fossiles, p. 179, and Charles Lyell’s Travels in North America, vol. ii., p. 20.
[EH]. Relacion del Viage al Estrecho de Magallanes (Apendice, 1793), p. 76.
[EI]. See Robert Brown, Appendix to Flinders’ Voyage, pp. 575, 584; and Humboldt, De Distribution Geographica Plantarum, pp. 81–85.