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 xi
... anatomical details , however important and desirable , is not the only history which can be written , nor is it essential . It would be interesting to know the size of brain , girth of chest , average stature , and the features of the ...
... anatomical details , however important and desirable , is not the only history which can be written , nor is it essential . It would be interesting to know the size of brain , girth of chest , average stature , and the features of the ...
Pagina xii
... anatomical series there described - amoeba , volvox , etc. - would not affect this result . By a change in the form of our history we have eliminated to a large extent the sources of uncertainty and error . And the dominant function of ...
... anatomical series there described - amoeba , volvox , etc. - would not affect this result . By a change in the form of our history we have eliminated to a large extent the sources of uncertainty and error . And the dominant function of ...
Pagina 27
... anatomical series . All such present existing forms have probably been modified during the lapse of ages . But I shall try to tell you when they have diverged noticeably from the structure of the primitive ancestor of the corresponding ...
... anatomical series . All such present existing forms have probably been modified during the lapse of ages . But I shall try to tell you when they have diverged noticeably from the structure of the primitive ancestor of the corresponding ...
Pagina 28
... Anatomical details are at best dry and uninteresting . But these dry facts of anatomy form the foundation on which all our arguments and hopes must rest . But if you will think long and carefully even of ana- tomical facts , you will ...
... Anatomical details are at best dry and uninteresting . But these dry facts of anatomy form the foundation on which all our arguments and hopes must rest . But if you will think long and carefully even of ana- tomical facts , you will ...
Pagina 58
... anatomical dif- ference lies in the skeleton ; and that this resulted from , and almost irrevocably fixed , certain habits of life . We may picture to ourselves the primitive ancestor of mollusks as a worm having the short and broad ...
... anatomical dif- ference lies in the skeleton ; and that this resulted from , and almost irrevocably fixed , certain habits of life . We may picture to ourselves the primitive ancestor of mollusks as a worm having the short and broad ...
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