Note {340} — Chapter VI · ON THE GEOGRAPHICAL DISTRIBUTION OF ORGANIC BEINGS IN PAST AND PRESENT TIMES
Reading edition
Chapters XI and XII in the Origin, Ed. i., vi. chs. XII and XIII (“On geographical distribution”) show signs of having been originally one, in the fact that one summary serves for both. The geological element is not separately treated there, nor is there a separate section on “how far these laws accord with the theory, &c.”
In the MS. the author has here written in the margin “If same species appear at two spot at once, fatal to my theory.” See Origin, Ed. i. p. 352, vi. p. 499