The Physical Basis of SocietyD. Appleton, 1916 - 406 من الصفحات |
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الصفحة xii
... destroyed the struggle for existence on which progress depends ? Is civilization destroying itself ? Does social evolution unfavorably affect pop- ulation ? Need of new ideals . X. SOCIAL INSTITUTIONS • • • Belief and knowledge . The ...
... destroyed the struggle for existence on which progress depends ? Is civilization destroying itself ? Does social evolution unfavorably affect pop- ulation ? Need of new ideals . X. SOCIAL INSTITUTIONS • • • Belief and knowledge . The ...
الصفحة 15
... destroyed . A similar change may be noted among the animals . Lizards and snakes gradually disappear along with the thick - skinned but practically hairless elephants and hippo- potami . In their stead wolves , bears and fur - bearing ...
... destroyed . A similar change may be noted among the animals . Lizards and snakes gradually disappear along with the thick - skinned but practically hairless elephants and hippo- potami . In their stead wolves , bears and fur - bearing ...
الصفحة 18
... destroy crops and wash the soil . Fog may bring little precipitation , but may produce many of the same effects and be very helpful , while dew prevents freezing ofttimes and also furnishes moisture . Granted then an adequate rainfall ...
... destroy crops and wash the soil . Fog may bring little precipitation , but may produce many of the same effects and be very helpful , while dew prevents freezing ofttimes and also furnishes moisture . Granted then an adequate rainfall ...
الصفحة 25
... Salt Lake . If the streams are polluted with acids , coal , dirt and filth , the fish soon leave or perish . The fumes from a smelter may destroy vegetation . Stone cutters , coal miners , painters and EARTH AND MAN 25.
... Salt Lake . If the streams are polluted with acids , coal , dirt and filth , the fish soon leave or perish . The fumes from a smelter may destroy vegetation . Stone cutters , coal miners , painters and EARTH AND MAN 25.
الصفحة 47
... destroyed , frequently build late in the season in trees . Ducks and geese that are hunted become extremely wary , but will quickly discover and frequent in large numbers a lake where shooting is pro- hibited . In parts of Africa ...
... destroyed , frequently build late in the season in trees . Ducks and geese that are hunted become extremely wary , but will quickly discover and frequent in large numbers a lake where shooting is pro- hibited . In parts of Africa ...
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