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 son, 1896 - 312 pagine |
Dall'interno del libro
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Pagina v
... SKELETON AND HEAD 55 Worms and the development of organs . - Mollusks : The external protec- tive skeleton leads to degeneration or stagnation . - Annelids and arthro- pods : The external locomotive skeleton leads to temporary rapid ...
... SKELETON AND HEAD 55 Worms and the development of organs . - Mollusks : The external protec- tive skeleton leads to degeneration or stagnation . - Annelids and arthro- pods : The external locomotive skeleton leads to temporary rapid ...
Pagina vi
... skeleton , appendages , circulatory and respiratory systems , and brain . -Mammals : The oviparous monotremata . -Marsupials . - Placental mammals . - Development of the placenta . — Prim- ates . - Arboreal life and the development of ...
... skeleton , appendages , circulatory and respiratory systems , and brain . -Mammals : The oviparous monotremata . -Marsupials . - Placental mammals . - Development of the placenta . — Prim- ates . - Arboreal life and the development of ...
Pagina 21
... skeleton differs greatly from , and is far weaker than , that of the lizard , and there are important differences in the circulatory and other systems . Moreover , practi- cally all amphibia differ from all reptiles in these respects ...
... skeleton differs greatly from , and is far weaker than , that of the lizard , and there are important differences in the circulatory and other systems . Moreover , practi- cally all amphibia differ from all reptiles in these respects ...
Pagina 53
... skeleton are still lacking ; they remain to be developed . And yet , taking the most hopeful view possible con- cerning the animal kingdom , its prospects of attain- ing anything very lofty seem at this point poor . Its highest ...
... skeleton are still lacking ; they remain to be developed . And yet , taking the most hopeful view possible con- cerning the animal kingdom , its prospects of attain- ing anything very lofty seem at this point poor . Its highest ...
Pagina 54
... but it is the promise of an infinite future . The atom of nervous power shall increase until it subdues and dom- inates the whole mass . CHAPTER III WORMS TO VERTEBRATES : SKELETON AND HEAD . 54 THE WHENCE AND THE WHITHER OF MAN.
... but it is the promise of an infinite future . The atom of nervous power shall increase until it subdues and dom- inates the whole mass . CHAPTER III WORMS TO VERTEBRATES : SKELETON AND HEAD . 54 THE WHENCE AND THE WHITHER OF MAN.
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
advance amoeba amphibia anatomical ancestors animal kingdom annelid apes appear appetite archenteron attained become beginning better birds body brain cells cerebrum characteristics conformity to environment conscious degeneration dominant ectoderm embryo embryology entoderm experience eyes fish functions future ganglion gastrula germ-plasm give groups heredity 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 ment mental mind mode modified mollusks moral motives muscles muscular muscular system natural selection nephridia nerve nervous system never notochord nutriment organs oxygen parapodia perception possible primitive probably progress protoplasm protozoa purely 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 vertebral column vertebrates volvox young