[35] Solms-Laubach (95), p. 442.
[36] Lindley and Hutton (31).
[37] Woodward (1729), Pt. ii. p. 106.
[38] Humboldt (48), vol. I. p. 274.
[39] Vide Hooker, J. D. (81), for references to other writers on this subject; also Darwin (82), ch. XII.
[40] Darwin (87), vol. III. p. 247.
[41] Brongniart (49), p. 94.
[42] Grand’Eury (77), Potonié (96), Kidston (94), &c.
[43] Ward (92), Knowlton (94), Grand’Eury (90), p. 155.
[44] Old Persian writer, quoted by E. G. Browne in A Year among the Persians, p. 220, London, 1893.