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 21
Pagina 72
... instinct is in many cases habit fixed by heredity and improved by selection . The rapid recurrence of successive generations was exceedingly favorable to the development of instincts , but very unfavorable to intelligence . Insects are ...
... instinct is in many cases habit fixed by heredity and improved by selection . The rapid recurrence of successive generations was exceedingly favorable to the development of instincts , but very unfavorable to intelligence . Insects are ...
Pagina 106
... instinct . They followed an at- tractive and exceedingly promising path , but it led to the bottom of a cliff , not to the summit . The mollusks , clams , and snails took an easier , down- hill road . They formed a shell , and it ...
... instinct . They followed an at- tractive and exceedingly promising path , but it led to the bottom of a cliff , not to the summit . The mollusks , clams , and snails took an easier , down- hill road . They formed a shell , and it ...
Pagina 110
... instinct and thought . Through the sense- organs it is gaining an ever clearer , deeper , and wider knowledge of its environment . First it is affected only by the lower stimuli of touch , taste , and smell . Then with the development ...
... instinct and thought . Through the sense- organs it is gaining an ever clearer , deeper , and wider knowledge of its environment . First it is affected only by the lower stimuli of touch , taste , and smell . Then with the development ...
Pagina 127
... Instinct . This is a much - abused word . It is frequently applied to all the mental actions of animals without much thought or care as to its meaning . Let us gain a definition from the study of a typical case lest we use the word as a ...
... Instinct . This is a much - abused word . It is frequently applied to all the mental actions of animals without much thought or care as to its meaning . Let us gain a definition from the study of a typical case lest we use the word as a ...
Pagina 128
... instincts there are several theories . Some instincts would seem to be the result of non - intelligent , perhaps ... Instinct is therefore characterized by consciousness of the stim- ulus to act , of the means and end , without the ...
... instincts there are several theories . Some instincts would seem to be the result of non - intelligent , perhaps ... Instinct is therefore characterized by consciousness of the stim- ulus to act , of the means and end , without the ...
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