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according acquired action adaptations Anatomy animals appeared Aristotle Bacon become beginning believed Biology body brought Buffon causes century changes characters clearly Comparative conception considered continuous Creation Darwin Design direct doctrine earlier early earth effects Empedocles environment Erasmus evidence Evolution idea existence explain expressed factor facts finally force forms further germs gives Goethe gradual Greek habits higher Hilaire hypothesis individuals induction influence knowledge Lamarck later less Linnĉus living lower matter ment method mind modification naturalists Nature observation opinion organisms origin passage perfect period philosophy plants position present principle problem produced progress published reached result says scientific seems seen Selection similar single speaks Special Special Creation species speculation structure succession suggestion teaching term theory things thought tion true types Universe variations varieties views whole writers
Page 1 - ... proceeds to judgment and to the discovery of middle axioms. And this way is now in fashion. The other derives axioms from the senses and particulars, rising by a gradual and unbroken ascent, so that it arrives at the most general...
Page 147 - ... would it be too bold to imagine, that all warm-blooded animals have arisen from one living filament, which THE GREAT FIRST CAUSE endued with animality, with the power of acquiring new parts, attended with new propensities, directed by irritations, sensations, volitions, and associations; and thus possessing the faculty of continuing to improve by its own inherent activity-, and of delivering down those improvements by generation to its posterity, world without end!
Page 233 - Continent; and thirdly, by the South American character of most of the productions of the Galapagos archipelago, and more especially by the manner in which they differ slightly on each island of the group ; none of the islands appearing to be very ancient in a geological sense. It was evident that such facts as these, as well as many others, could only be explained on the supposition that species gradually become modified; and the subject haunted me.
Page 238 - I grieve to say that I cannot honestly go as far as you do about Design. I am conscious that I am in an utterly hopeless muddle. I cannot think that the world, as we see it, is the result of chance ; and yet I cannot look at each separate thing as the result of Design.
Page 19 - ... that there is some question as to the earth or the sky, or the other elements of this world . . . respecting which one who is not a Christian has knowledge derived from most certain reasoning or observation: and it is very disgraceful and mischievous, and of all things to be carefully avoided, that a Christian, speaking of such matters as being according to the Christian scriptures, should be heard by an unbeliever talking such nonsense that the unbeliever, perceiving him to be as wide from the...
Page 234 - But it was equally evident that neither the action of the surrounding conditions, nor the will of the organisms (especially in the case of plants) could account for the innumerable cases in which organisms of every kind are beautifully adapted to their habits of life — for instance, a woodpecker or a tree-frog to climb trees, or a seed for dispersal by hooks or plumes.
Page 147 - ... would it be too bold to imagine, that in the great length of time, since the earth began to exist, perhaps millions of ages before the commencement of the history of mankind, would it be too bold to imagine that all warm-blooded animals have arisen from one living filament...
Page 150 - Linnaeus has conjectured in respect to the vegetable world, it is not impossible, but the great variety of species of animals, which now tenant the earth, may have had their origin from the mixture of a few natural orders.
Page 234 - ... equally evident that neither the action of the surrounding conditions, nor the will of the organisms (especially in the case of plants) could account for the innumerable cases in which organisms of every kind are beautifully adapted to their habits of life — for instance, a woodpecker or a tree-frog to climb trees, or a seed for dispersal by hooks or plumes. I had always been much struck by such adaptations, and until these could be explained it seemed to me almost useless to endeavour to prove...
Page 244 - Most or perhaps all the variations from the typical form of a species must have some definite effect, however slight, on the habits or capacities of the individuals. Even a change of colour might, by rendering them more or less distinguishable, affect their safety ; a greater or less development of hair might modify their habits.