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 87
Pagina x
... animal . At the same time it concerns our argument but little whether natural selection is " omnipotent " or of only secondary importance in evolution , as long as it is a real factor , or which theory of heredity or variation is the ...
... animal . At the same time it concerns our argument but little whether natural selection is " omnipotent " or of only secondary importance in evolution , as long as it is a real factor , or which theory of heredity or variation is the ...
Pagina xi
... animal . A little later he very probably passed through a gastrea stage . He trav- ersed fish , amphibian , and ... animals of a given grade , even those which through INTRODUCTION xi.
... animal . A little later he very probably passed through a gastrea stage . He trav- ersed fish , amphibian , and ... animals of a given grade , even those which through INTRODUCTION xi.
Pagina xiii
... animal and human development , if we can further be convinced that the sequence is irreversible , we shall be convinced that future man will be more and more com- pletely controlled by the very highest powers or aims to which this ...
... animal and human development , if we can further be convinced that the sequence is irreversible , we shall be convinced that future man will be more and more com- pletely controlled by the very highest powers or aims to which this ...
Pagina xiv
... animals far below man . We are just beginning to recognize that the study of zoology is an essential prerequisite to ... animal and human progress shows us successive stages , each a little higher than the pre- ceding , and surviving ...
... animals far below man . We are just beginning to recognize that the study of zoology is an essential prerequisite to ... animal and human progress shows us successive stages , each a little higher than the pre- ceding , and surviving ...
Pagina 6
... animal kingdom is continually blossoming in ever higher forms ? Does not the same reasoning hold true , only with added force ? I firmly believe that we should all unhesitatingly answer , yes , could we but be assured that all men would ...
... animal kingdom is continually blossoming in ever higher forms ? Does not the same reasoning hold true , only with added force ? I firmly believe that we should all unhesitatingly answer , yes , could we but be assured that all men would ...
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