...paper.28 [1905] '>' '*: ON THE TENDENCY OF VARIETIES TO DEPART INDEFINITELY FROM THE ORIGINAL TYPE One of the strongest arguments which have been adduced...naturalists, and has led to a very general and somewhat prejudiced belief in the stability of species. Equally general, however, is the belief in what are...

...he is using the same mechanism for completely opposite ends — species mutability, not stability: One of the strongest arguments which have been adduced...preserving unchanged the originally created distinct species.43 gone unnoticed by the two naturalists. A perfect example of this was the Scottish botanist...

...extract from a letter to Asa Gray. See item #2 in Appendix A. 4 and letter #15 in Appendix A. 5.)] One of the strongest arguments which have been adduced...originally created distinct species. In the absence of scarcity of facts and observations as to varieties occurring among wild animals, this argument has...

...of the parent species." From this it was concluded (wrongly, he holds) that "this instability is ... a distinctive peculiarity of all varieties, even of...unchanged the originally created distinct species" (10). Of further interest is that Charles Lyell (1832), as we saw earlier, stated the issue of species...

...species; and this instability is considered to be a distinctive peculiarity of all varieties, even those occurring among wild animals in a state of nature,...unchanged the originally created distinct species." He then adds, with regard to the difficulty that the existence of permanent or true varieties posed...

...think about science; for Wallace, on the other hand, his metaphor helps us understand his argument: One of the strongest arguments which have been adduced...originally created distinct species. In the absence of scarcity or facts and observations as to varieties occurring among wild animals, this argument has...