...naturalists having sound judgement and wide experience seems the only guide to follow', adding that 'this may not be a cheering prospect, but we shall...undiscovered and undiscoverable essence of the term species'. In philosophers' terms, Darwin had given up on essentialism and opted for pragmatism instead. He had...

...individual differences, is also applied arbitrarily, and for mere convenience sake. [52] 1n short, we shall have to treat species in the same manner...undiscovered and undiscoverable essence of the term species. [485] 1 1 Unlike Descartes and many others, Locke, in subscribing to the Great Chain of Being, did...

...convenience' sake. (pp. 38-40) He repeats the same line of thought at the end of the book: In short, we shall have to treat species in the same manner...undiscovered and undiscoverable essence of the term species, (p. 405) Read in a Wittgensteinian way, we could say that also for Darwin "the finding and inventing...

...essence a species. This, I feel sure, and I speak after experience, will be no slight relief. . . . We shall at least be freed from the vain search for...undiscovered and undiscoverable essence of the term species. The other and more general departments of natural history will rise greatly in interest. The terms...

...whereas species were formerly thus connected.' His own insights mean that 'we shall at least be free from the vain search for the undiscovered and undiscoverable essence of the term species' (371). There are no pure types or natural kinds in nature. There is not a definitive bald eagle, or...

...Origin, "will be able to pursue their labours as at present," but they will no longer be burdened with "the vain search for the undiscovered and undiscoverable essence of the term species" (Darwin 1859, pp. 484-485). In Darwin's time, a definition would characterize a species as of necessity...

...the Origin (1859), in the concluding chapter Darwin proclaims that as a result of his investigations "we shall have to treat species in the same manner...undiscovered and undiscoverable essence of the term species" (485). This passage relates to both halves of a modern distinction that partly defines the modern species...

...shall have to treat species ... as artificial combinations made for convenience" in order to be free from the "vain search for the undiscovered and undiscoverable essence of the term species." Given the title of his book, we can be confident that Darwin did not mean to say that species are merely...

...primrose and cowslip; and in this case scientific and common language will come into accordance. In short, we shall have to treat species in the same manner...undiscovered and undiscoverable essence of the term species. The other and more general departments of natural history will rise greatly in interest. The terms...

...shall have to treat species [as] merely artificial combinations made for convenience [of language]. This may not be a cheering prospect; but we shall at least be free from the vain search for the undiscovered and undiscoverable essence of the term species.19 Note...