The Foundations of the Origin of Species / Two Essays written in 1842 and 1844

by Charles Darwin

[{14}] Avestruz Petise, i.e. Rhea Darwini.

[{15}] A bird.

[{16}] Life and Letters, i. p. 84.

[{17}] It contains as a fact 231 pp. It is a strongly bound folio, interleaved with blank pages, as though for notes and additions. His own MS. from which it was copied contains 189 pp.

[{18}] Life and Letters, ii. p. 116.

[{19}] Life and Letters, ii. p. 10.

[{20}] Life and Letters, ii. p. 146.

[{21}] J. Linn. Soc. Zool. iii. p. 45.

[{22}] It is evident that Parts and Chapters were to some extent interchangeable in the author’s mind, for p. 1 (of the MS. we have been discussing) is headed in ink Chapter I, and afterwards altered in pencil to Part I.

[{23}] On p. 23 of the MS. of the Foundations is a reference to the “back of p. 21 bis”: this suggests that additional pages had been interpolated in the MS. and that it may once have had 37 in place of 35 pp.