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 22
Pagina x
... successive stages of development and the attainments of each stage have been clearly perceived . In other words , the first prerequisite would seem to be a genealogical * tree of the animal kingdom . The means of tracing this ...
... successive stages of development and the attainments of each stage have been clearly perceived . In other words , the first prerequisite would seem to be a genealogical * tree of the animal kingdom . The means of tracing this ...
Pagina xiii
... successive stages of 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 ...
... successive stages of 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 ...
Pagina xiv
... aiding or destroy- ing good and bad , fit and unfit , alike . But our history of animal and human progress shows us successive stages , each a little higher than the pre- ceding , and surviving , for a time at least xiv INTRODUCTION.
... aiding or destroy- ing good and bad , fit and unfit , alike . But our history of animal and human progress shows us successive stages , each a little higher than the pre- ceding , and surviving , for a time at least xiv INTRODUCTION.
Pagina xv
... successive efforts , each attaining a little more complete conformity than the preceding . From such a history we ought to be able to draw certain valid deductions concerning the general character and laws of our environment , to ...
... successive efforts , each attaining a little more complete conformity than the preceding . From such a history we ought to be able to draw certain valid deductions concerning the general character and laws of our environment , to ...
Pagina 11
... successive generations to march across the continent . And yet even they give but a faint idea of the re- productive powers of plants and animals . The female fish produces often many thousands , sometimes hun- dreds of thousands of ...
... successive generations to march across the continent . And yet even they give but a faint idea of the re- productive powers of plants and animals . The female fish produces often many thousands , sometimes hun- dreds of thousands of ...
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