[3] Isid. Geoffroy St.-Hilaire, ‘Hist. des Anomalies,’ tom. iii. p. 352; Moquin-Tandon, ‘Tératologie Végétale,’ 1841, p. 115.
[4] Metzger, ‘Die Getreidarten,’ 1841, s. 39.
[5] On the date-palm see Vogel, ‘Annals and Mag. of Nat. Hist.,’ 1854, p. 460. On Indian varieties, Dr. F. Hamilton, ‘Transact. Linn. Soc.,’ vol. xiv. p. 296. On the varieties cultivated in Tahiti, see Dr. Bennett, in Loudon’s ‘Mag. of N. Hist.,’ vol. v. 1832, p. 484. Also Ellis, ‘Polynesian Researches,’ vol. i. pp. 370, 375. On twenty varieties of the Pandanus and other trees in the Marianne Island, see ‘Hooker’s Miscellany,’ vol. i. p. 308. On the bamboo in China, see Huc’s ‘Chinese Empire,’ vol. ii. p. 307.
[6] ‘Treatise on the Culture of the Apple,’ etc., p. 3.
[7] Gallesio, ‘Teoria della Riproduzione Veg.,’ p. 125.
[8] See Dr. Hooker’s Memoir on Arctic Plants in ‘Linn. Transact.,’ vol. xxiii. part ii. Mr. Woodward, and a higher authority cannot be quoted, speaks of the Arctic mollusca (in his ‘Rudimentary Treatise,’ 1856, p. 355) as remarkably subject to variation.
[9] Bechstein, in his ‘Naturgeschichte der Stubenvögel,’ 1840, s. 238, has some good remarks on this subject. He states that his canary-birds varied in colour, though kept on uniform food.
[10] ‘The Plant,’ by Schleiden, translated by Henfrey, 1848, p. 169. See also Alex. Braun, in ‘Bot. Memoirs,’ Ray Soc., 1853, p. 313.
[11] Messrs. Hardy and Son, of Maldon, in ‘Gardener’s Chronicle,’ 1856, p. 458. Carrière, ‘Production et Fixation des Variétés,’ 1865, p. 31.
[12] ‘Quadrupedes du Paraguay,’ 1801, tom. ii. p. 319.