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 Sons, 1897 - 312 pagine |
Dall'interno del libro
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Pagina v
... ORGANS . 32 Amœba : Its anatomy and physiology . — Development of the cell.— Hydra : The development of digestive and reproductive organs , and of tissues . - Forms intermediate between amoeba and hydra : Magosphæra , volvox ...
... ORGANS . 32 Amœba : Its anatomy and physiology . — Development of the cell.— Hydra : The development of digestive and reproductive organs , and of tissues . - Forms intermediate between amoeba and hydra : Magosphæra , volvox ...
Pagina viii
... organs.- Fortuitous variation . — Origin of the fittest . - Nägeli's theory : Initial ten- dency supreme . - Weismann and the Neo - Darwinians : Natural selection omnipotent . - The Neo - Lamarckians . - Comparison of the Neo ...
... organs.- Fortuitous variation . — Origin of the fittest . - Nägeli's theory : Initial ten- dency supreme . - Weismann and the Neo - Darwinians : Natural selection omnipotent . - The Neo - Lamarckians . - Comparison of the Neo ...
Pagina xii
... organs have appeared . This sequence of dominant functions , * of physiologi- cal dynasties , would seem therefore to be a fact . And our series of forms described in the second , third , and fourth chapters is merely a concrete ...
... organs have appeared . This sequence of dominant functions , * of physiologi- cal dynasties , would seem therefore to be a fact . And our series of forms described in the second , third , and fourth chapters is merely a concrete ...
Pagina xiv
... organ or function give an adequate idea of the human body . Only when we have attained a biological history can we have any satisfactory conception of environment . As we look about us in the world , environment often seems to us to be ...
... organ or function give an adequate idea of the human body . Only when we have attained a biological history can we have any satisfactory conception of environment . As we look about us in the world , environment often seems to us to be ...
Pagina 5
... organs of the rose or violet . Let us suppose for a moment that every rose and violet required a special act of immediate creation , would the springtime be as wonderful as now ? Would the rose or violet be any more beautiful , or are ...
... organs of the rose or violet . Let us suppose for a moment that every rose and violet required a special act of immediate creation , would the springtime be as wonderful as now ? Would the rose or violet be any more beautiful , or are ...
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 - 1896 |
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 better birds body brain cells conformity to environment conscious degeneration dominant ectoderm embryo embryology existence experience eyes fish functions future ganglion gastrula gills give groups 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 membrane ment mental mind mode modified mollusks moral mouth muscles muscular muscular system mutability of species natural selection nephridia nerve nervous system never notochord nutriment organs oxygen parapodia perception perivisceral cavity possible primitive probably progress protoplasm protozoa purely race 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 vertebrates volvox young