[{135}] After “organs” is inserted, apparently as an afterthought:—“no, and instance metamorphosis, afterwards explicable.”
[{136}] For analogical resemblances see Origin, Ed. i. p. 427, vi. p. 582.
[{137}] “Practically when naturalists are at work, they do not trouble themselves about the physiological value of the characters.... If they find a character nearly uniform,... they use it as one of high value,” Origin, Ed. i. p. 417, vi. p. 573.
[{138}] “We are cautioned ... not to class two varieties of the pine-apple together, merely because their fruit, though the most important part, happens to be nearly identical,” Origin, Ed. i. p. 423, vi. p. 579.
[{139}] The whole of this passage is obscure, but the text is quite clear, except for one illegible word.
[{140}] «The exact position of the following passage is uncertain:» “just as it is not likely every present breed of fancy birds and cattle will propagate, only some of the best.”
[{141}] This suggests that the author was not far from the principle of divergence on which he afterwards laid so much stress. See Origin, Ed. i. p. 111, vi. p. 134, also Life and Letters, i. p. 84.
[{142}] That is to say the same conditions occurring in different parts of the globe.
[{143}] The position of the following is uncertain, “greyhound and racehorse have an analogy to each other.” The same comparison occurs in the Origin, Ed. i. p. 427, vi. p. 583.
[{144}] Air is evidently intended; in the MS. water is written twice.