...was that selection would give new direction to the breed. The "key" to these changes, said Darwin, "is man's power of accumulative selection: nature...adds them up in certain directions useful to him." He then posed, with every hope of a positive response, the decisive question: "Can the principle of...

...nature of flowers and the process of pollination.27 This knowledge, along with Darwin's concept that "the key is man's power of accumulative selection;...variations; man adds them up in certain directions useful to him,"28 served to extend the powers of cultivators still further. Ironically, though the basic workings...

...relative to the direct action of external conditions of life, habit, and simple variability: 'We cannot suppose that all the breeds were suddenly produced as perfect and as useful as we now see them. . . . The key is man's power of accumulative selection: nature gives successive variations; man adds...

...and are only controlled by domestic breeders, who select some and reject others. "Nature," he says, "gives successive variations; man adds them up in certain directions useful to him" (p. 90). Variability is simply the inexplicable given for Darwin. It is true that for the purposes...

...and animals changed over time to become better adapted to human needs. He explains these changes as "man's power of accumulative selection: nature gives...directions useful to him. In this sense he may be said to make for himself useful breeds."1 When he realized that such selection pressures also exist in nature...

...selection. The latter is but the human attempt to channel an inhuman process, or in Darwin's words: 'nature gives successive variations; man adds them up in certain directions useful to him' (Darwin 1993: 127). Yet after establishing this analogy in chapter 1 of the Origin of the Species Darwin...

...selection themselves. One imagines he would have noted this statement from Darwin's book. "We cannot suppose that all the breeds were suddenly produced...variations; man adds them up in certain directions useful to him."7 Galton's belief in the heritability of talent and character was reinforced not only by his own...

...see in the adaptation, not indeed to the animal's or plant's own good, but to man's use or fancy. ... The key is man's power of accumulative selection:...directions useful to him. In this sense he may be said to make for himself useful breeds. (Origin: 89-90) He emphasizes that this "principle of selection" is...

...purposes, or so beautiful in his eyes, we must, I think, look further than to mere variability. We cannot suppose that all the breeds were suddenly produced...perfect and as useful as we now see them; indeed, in several cases, we know that this has not been their history. The key is man's power of accumulative...

...animals that possessed the desired quality. As Darwin wrote in Origin of the Species (1859): We cannot suppose that all the breeds were suddenly produced...not been their history. The key is man's power of accumulation selection: nature gives successive variations; man adds them up in certain directions...