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
Risultati 1-5 di 23
Pagina xiv
... follow the path pointed out by Mr. Darwin . For paleontology , zoölogy , history , social and politi- cal science , and philosophy are really only parts of one great science , of biology in the widest sense , in distinc- tion from the ...
... follow the path pointed out by Mr. Darwin . For paleontology , zoölogy , history , social and politi- cal science , and philosophy are really only parts of one great science , of biology in the widest sense , in distinc- tion from the ...
Pagina 10
... follows : 1. There is in Nature a law of heredity ; like begets like . 2. The offspring is never exactly like the parent ; and the members of the second generation differ more or less from one another . This is especially noticeable in ...
... follows : 1. There is in Nature a law of heredity ; like begets like . 2. The offspring is never exactly like the parent ; and the members of the second generation differ more or less from one another . This is especially noticeable in ...
Pagina 12
... evidently distinct wingless species as follows : They are de- scended from winged ancestors blown or otherwise transported thither from the neighboring continent . But beetles are 12 THE WHENCE AND THE WHITHER OF MAN.
... evidently distinct wingless species as follows : They are de- scended from winged ancestors blown or otherwise transported thither from the neighboring continent . But beetles are 12 THE WHENCE AND THE WHITHER OF MAN.
Pagina 25
... follow from the egg to the adult form is continually lengthening as life advances ever higher . From egg to sponge is , comparatively speaking , but a step ; it is a long march from the egg to the earthworm ; and the vertebrate embryo ...
... follow from the egg to the adult form is continually lengthening as life advances ever higher . From egg to sponge is , comparatively speaking , but a step ; it is a long march from the egg to the earthworm ; and the vertebrate embryo ...
Pagina 81
... follow each one of these rapidly in its upward course . We must remember that there are changes in the vegetative organs . The digestive and excretory sys- tems improve . But this improvement is not for the sake of these vegetative ...
... follow each one of these rapidly in its upward course . We must remember that there are changes in the vegetative organs . The digestive and excretory sys- tems improve . But this improvement is not for the sake of these vegetative ...
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