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absolutely absurdity admit air-particles air-waves amplitude animals argument atmosphere atoms cause compressed condensations and rarefactions constituting corporeal corpuscles Darwin demonstrated distance drum-skin embryo entirely evidence evolution evolutionists exactly existence explain fact feet a second force fork gemmules Haeckel heat Hence Huxley hypothesis inches intelligent intelligent design iron Joseph Cook logical marsupial mechanical ment mind monera moneron move natural selection necessarily Origin of Species orohippus oscillation over-tones ovule pangenesis pantheism particles phenomena physical physicists pitch principle produced Prof Professor Helmholtz Professor Tyndall prong proof prove pulses rarefactions reader reason result scientific single siren sonorous soul sound-pulse sound-waves species spontaneous stridulation string structure substance substantial supposed sympathetic vibration teaches theory of descent theory of sound thing tion tone transmutation true truth tube tuning-fork tympanic membrane unison velocity of sound vital and mental water-waves wave-length wave-motion wave-theory of sound waves
Page 396 - What limit can be put to this power, acting during long ages and rigidly scrutinising the whole constitution, structure, and habits of each creature, — favouring the good and rejecting the bad?
Page 29 - That gravity should be innate, inherent, and essential to matter, so that one body may act upon another at a distance through a vacuum, without the mediation of anything else, by and through which their action and force may be conveyed from one to another, is to me so great an absurdity that I believe no man who has in philosophical matters a competent faculty of thinking can ever fall into it.
Page 452 - If such do occur, can we doubt (remembering that many more individuals are born than can possibly survive) that individuals having any advantage, however slight, over others, would have the best chance of surviving and of procreating their kind?
Page 452 - Several writers have misapprehended or objected to the term Natural Selection. Some have even imagined that natural selection induces variability, whereas it implies only the preservation of such variations as arise and are beneficial to the being under its conditions of life.
Page 396 - Not one man in a thousand has accuracy of eye and judgment sufficient to become an eminent breeder. If gifted with these qualities, and he studies his subject for years, and devotes his lifetime to it with indomitable perseverance, he will succeed, and may make great improvements; if he wants any of these qualities, he will assuredly fail.
Page 263 - In the earlier ages of the church it held that the earth was the center of the universe, and that the sun. moon, and stars revolved around it.
Page 445 - And as Natural Selection works solely by and for the good of each being, all corporeal and mental endowments will tend to progress towards perfection.
Page 396 - Let this process go on for millions of years; and during each year on millions of individuals of many kinds; and may we not believe that a living optical instrument might thus be formed as superior to one of glass, as the works of the Creator are to those of man ? Modes of Transition.
Page 100 - Imagine one of the prongs of the vibrating fork swiftly advancing. It compresses the air immediately in front of it, and when it retreats it leaves a partial vacuum behind, the process being repeated at every subsequent advance and retreat.
Page 370 - Ontogeny is a recapitulation of Phylogeny ; or, somewhat more explicitly : that the series of forms through which the individual organism passes during its progress from the egg cell to its fully developed state, is a brief, compressed reproduction of the long series of forms through which the animal ancestors of that organism (or the ancestral forms of its species) have passed from the earliest periods of so-called organic creation down to the present time.