The Whence and the Whither of Man: A Brief History of His Origin and Development Through Conformity to Environment; Being the Morse Lectures of 1895W. Blackwood and Sons, 1896 - 312 pagine |
Dall'interno del libro
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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 . posi- First it is affected only by the lower stimuli of touch , taste , and smell . Then with the ...
... instinct and thought . Through the sense- organs it is gaining an ever clearer , deeper , and wider knowledge of its environment . posi- First it is affected only by the lower stimuli of touch , taste , and smell . Then with the ...
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 unconscious , habits becom- ing fixed by heredity and improved by natural selec- tion ; others would appear to be ...
... instincts there are several theories . Some instincts would seem to be the result of non - intelligent , perhaps unconscious , habits becom- ing fixed by heredity and improved by natural selec- tion ; others would appear to be ...
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 - 1897 |
The Whence and the Whither of Man: A Brief History of His Origin and ... John Mason Tyler Visualizzazione completa - 1899 |
Parole e frasi comuni
amoeba amphibia anatomical ancestors animal kingdom annelid apes appear appetite attained become birds body brain cavity cells cerebrum Cheaper Edition church conformity to environment conscious Crown 8vo degeneration Demy 8vo digestive dominant ectoderm embryo evolution experience eyes Fcap fish functions ganglion gastrula germ-plasm give groups higher forms highest human hydra Illustrations increase individual insect instinct intelligence laws layer legs living locomotion lower mammals man's marsupial ment mental mind mode modified mollusks moral muscles muscular natural selection nerve nervous system never notochord nutriment organs oxygen parapodia perception perivisceral Portrait Post 8vo primitive probably Professor progress protoplasm protozoa purely reflex action reproductive reptiles result schematic worm Scotland segments selfish sense-organs sequence skeleton species stage structure struggle surface survive swimming theory tion true truth turbellaria University of Edinburgh variation velopment vertebral column vertebrates vols volvox WHITHER young