...over others.' * In accepting this conclusion, it must be borne in mind that Darwin felt constrained ' to acknowledge plainly our ignorance of ' the cause of each particular variation.' f The research he started carried us behind and beyond the evidence for historic variation. We are...

...to account for them. Still less does he connect them with the effort or aspirations of any organism after new faculties and powers. He frankly confesses...plainly our ignorance of the cause of each particular variation.1 Again, he says, ' I believe in no law of necessary development.' " (Origin of Species.)...

...under nature, were due to chance. This, of course, is a wholly incorrect expression, but it serves to acknowledge plainly our ignorance of the cause of each particular variation."» I have already quoted Lankester upon this principle and refer below to a passage in which he reiterates...

...to account for them. Still less does he connect them with the effort or aspirations of any organism after new faculties and powers. He frankly confesses...Again he says — " I believe in no law of necessary development."f This distinction between Mr Darwin's theory and other theories of development, has not,...

...meaning of the law." •• This (chance) of course is a wholly incorrect expression, but it serves to acknowledge plainly our Ignorance of the cause of each particular variation." '• Why • • . . this or that part should vary more or jess, ire are profoundly ignorant ; nevertheless,...

...nature — had been due to chance. This, of course, is a wholly incorrect expression, but it serves to acknowledge plainly our ignorance of the cause of each particular variation. Some authors believe it to be as much the function of the reproductive system to produce individual...

...of nature—had been due to chance. This, of course, is a wholly incorrect expression, but it serves to acknowledge plainly our ignorance of the cause of each particular variation." Not only, however, do I hold, in common with Mr Darwin, that there must be some cause for these apparently-spontaneous...

...nature — had been due to chance. This, of course, is a wholly incorrect expression, but it serves to acknowledge plainly our ignorance of the cause of each particular variation." Not only, however, do I hold, in common with Mr Darwin, that there must be some cause for these apparently-spontaneous...

...nature — had been due to chance. This, of course, is a wholly incorrect expression, but it serves to acknowledge plainly our ignorance of the cause of each particular variation. Some authors believe it to be as much the function of the reproductive system to produce individual...

...faculties and powers. He frankly confesses that ' our ignorance of the laws of variation is profound,' and that in speaking of them as due to chance, he means...says, 'I believe in no law of necessary development.' His theory seems to be far better than a mere theory — to be an established scientific truth,—...