The Whence and the Whither of Man: A Brief History of His Origin and Development Through Conformity to Environment; Being the Morse Lectures of 1895C. Scribner's son, 1896 - 312 pagine |
Dall'interno del libro
Risultati 1-5 di 42
Pagina ix
... that science is now competent to deal with this question ; not that she can give a final and conclusive answer , but that we can reach results which are probably in the main correct . We may grant very cheerfully that INTRODUCTION.
... that science is now competent to deal with this question ; not that she can give a final and conclusive answer , but that we can reach results which are probably in the main correct . We may grant very cheerfully that INTRODUCTION.
Pagina x
... probably correct , we shall do well to act according to them ; for all our actions in life are suited to meet the emergencies of a probable but uncertain course of events . We take for granted the probable truth of the theory of ...
... probably correct , we shall do well to act according to them ; for all our actions in life are suited to meet the emergencies of a probable but uncertain course of events . We take for granted the probable truth of the theory of ...
Pagina xi
... probably passed through a gastræa stage . He trav- ersed fish , amphibian , and reptilian grades . The oviparous monotreme and the marsupial almost cer- tainly represent lower mammalian ancestral stages . But what kind of fish , what ...
... probably passed through a gastræa stage . He trav- ersed fish , amphibian , and reptilian grades . The oviparous monotreme and the marsupial almost cer- tainly represent lower mammalian ancestral stages . But what kind of fish , what ...
Pagina 3
... probably all present existing , species are only mediately the result of a creative act . The first living germ , whenever and however created , was in- fused with power to give birth to higher species . Of these and their descendants ...
... probably all present existing , species are only mediately the result of a creative act . The first living germ , whenever and however created , was in- fused with power to give birth to higher species . Of these and their descendants ...
Pagina 11
... probably at least from twelve to twenty eggs . Now let us suppose that all these eggs developed , and all the birds lived out their normal period of life , and reproduced at the same rate . After not many centuries there would not be ...
... probably at least from twelve to twenty eggs . Now let us suppose that all these eggs developed , and all the birds lived out their normal period of life , and reproduced at the same rate . After not many centuries there would not be ...
Altre edizioni - Visualizza tutto
The Whence and the Whither of Man: A Brief History of His Origin and ... John Mason Tyler Visualizzazione completa - 1896 |
The Whence and the Whither of Man: A Brief History of His Origin and ... John Mason Tyler Visualizzazione completa - 1897 |
The Whence and the Whither of Man: A Brief History of His Origin and ... John Mason Tyler Visualizzazione completa - 1899 |
Parole e frasi comuni
advance amoeba amphibia anatomical ancestors animal kingdom annelid apes appear appetite archenteron attained become beginning better birds body brain cells cerebrum characteristics conformity to environment conscious degeneration dominant ectoderm embryo embryology entoderm experience eyes fish functions future ganglion gastrula germ-plasm give groups heredity higher animals higher forms highest human hydra important increase individual insect instinct intelligence jaws knowledge laws layer legs living locomotion lower mammals man's marsupial ment mental mind mode modified mollusks moral motives muscles muscular muscular system natural selection nephridia nerve nervous system never notochord nutriment organs oxygen parapodia perception possible primitive probably progress protoplasm protozoa purely reflex action reptiles result schematic worm segments selfish sense-organs sequence shell skeleton species spermatozoa stage structure struggle surface survive swimming theory of evolution tion tissues true truth turbellaria unselfishness variation velopment vertebral column vertebrates volvox young