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
Risultati 1-5 di 25
Pagina v
... purely historical . - Means of tracing man's ancestry and history . - Classification . -Ontogenesis and Phylogenesis . CHAPTER II PROTOZOA TO WORMS : CELLS , TISSUES , AND ORGANS . 32 Amœba : Its anatomy and physiology . — Development ...
... purely historical . - Means of tracing man's ancestry and history . - Classification . -Ontogenesis and Phylogenesis . CHAPTER II PROTOZOA TO WORMS : CELLS , TISSUES , AND ORGANS . 32 Amœba : Its anatomy and physiology . — Development ...
Pagina xii
... purely for digestion and reproduction , and the same is true of the lowest and most primitive animals . A muscular system cannot develop and do its work until some sort of a digestive system has arisen to furnish nutriment , any more ...
... purely for digestion and reproduction , and the same is true of the lowest and most primitive animals . A muscular system cannot develop and do its work until some sort of a digestive system has arisen to furnish nutriment , any more ...
Pagina xiii
... purely his- torical . Here and there we will try to find why and how things had to be so . But all such digressions are of small account compared with the fact that things were or are thus and so . And a mistaken explana- tion will not ...
... purely his- torical . Here and there we will try to find why and how things had to be so . But all such digressions are of small account compared with the fact that things were or are thus and so . And a mistaken explana- tion will not ...
Pagina 60
... purely defensive campaign , de- veloped a powerful beak , led a life like that of the old Norse pirates , and were for a time the rulers and ter- rors of the sea . With their more rapid locomotion the supra - oesophageal ganglion ...
... purely defensive campaign , de- veloped a powerful beak , led a life like that of the old Norse pirates , and were for a time the rulers and ter- rors of the sea . With their more rapid locomotion the supra - oesophageal ganglion ...
Pagina 65
... purely protective , a hindrance to locomotion . That of the in- sect is still somewhat protective , but is mainly , almost purely , locomotive . It is never allowed to become so heavy as to interfere with locomotion . In the second ...
... purely protective , a hindrance to locomotion . That of the in- sect is still somewhat protective , but is mainly , almost purely , locomotive . It is never allowed to become so heavy as to interfere with locomotion . In the second ...
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