[{368}] «Note in original.» Perhaps vitality checked by cold and so prevented germinating. «On the carriage of seeds by icebergs, see Origin, Ed. i. p. 363, vi. p. 513.»
[{369}] A note by the author gives “many authors” apparently as authority for this statement.
[{370}] Opposite to this passage, in the margin, the author has written:—“too hypothetical.”
[{371}] The Cordillera is described as supplying a great line of invasion in the Origin, Ed. i. p. 378.
[{372}] This is an approximation to the author’s views on trans-tropical migration (Origin, Ed. i. pp. 376-8). See Thiselton-Dyer’s interesting discussion in Darwin and Modern Science, p. 304.
[{373}] See Hooker’s Lecture on Insular Floras in the Gardeners’ Chronicle, Jan. 1867.
[{374}] «Note by the author.» Similarity of flora of coral islands easily explained.
[{375}] On centres of creation see Origin, Ed. i. p. 352, vi. p. 499.
[{376}] In the Journal of Researches, Ed. 1860, p. 124, the distribution of the Bizcacha is described as limited by the river Uruguay. The case is not I think given in the Origin.
[{377}] In the Origin, Ed. i. a special section (p. 356, vi. p. 504) is devoted to Means of Dispersal. The much greater prominence given to this subject in the Origin is partly accounted for by the author’s experiments being of later date, i.e. 1855 (Life and Letters, vol. II. p. 53). The carriage of fish by whirlwinds is given in the Origin, Ed. i. p. 384, vi. p. 536.