The Physical Basis of SocietyD.Appleton, 1928 - 526 من الصفحات |
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الصفحة xiv
... Living The Cause of Migrations The Problem Defined Malthus East's Summary of the Present Situation The Situation in the United States Our Food Supply Per Capita Food Production Food Exports and Imports Forest Resources Forest ...
... Living The Cause of Migrations The Problem Defined Malthus East's Summary of the Present Situation The Situation in the United States Our Food Supply Per Capita Food Production Food Exports and Imports Forest Resources Forest ...
الصفحة 6
... living students , Joly , thinks it quite possible that the heat developed by condensation may again produce a molten globe , or even cause an explosion great enough to tear the earth into pieces through the accumula- tion of radioactive ...
... living students , Joly , thinks it quite possible that the heat developed by condensation may again produce a molten globe , or even cause an explosion great enough to tear the earth into pieces through the accumula- tion of radioactive ...
الصفحة 18
... living organisms appeared , the carbon dioxide was gradually removed from the air and the oxygen taken from the rocks was given to the air until the present mixture was secured . On the moon gravity is so much less , because the moon ...
... living organisms appeared , the carbon dioxide was gradually removed from the air and the oxygen taken from the rocks was given to the air until the present mixture was secured . On the moon gravity is so much less , because the moon ...
الصفحة 25
... living organisms has been avoided . PRESENT TIME THE GEOLOGICAL TIME - TABLE Psychozoic Era . Age of Man or Age of Reason Includes the present or " recent time " and the time during which man attained his highest civilization ...
... living organisms has been avoided . PRESENT TIME THE GEOLOGICAL TIME - TABLE Psychozoic Era . Age of Man or Age of Reason Includes the present or " recent time " and the time during which man attained his highest civilization ...
الصفحة 30
... living forms took place . To this question no positive answer can be given . In the past men felt compelled to posit the existence of some " vital prin- ciple " which , in some way , entered into matter and gave it life . Again we have ...
... living forms took place . To this question no positive answer can be given . In the past men felt compelled to posit the existence of some " vital prin- ciple " which , in some way , entered into matter and gave it life . Again we have ...
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acres Africa America appears areas Asia atoms average bacteria believe birds body carbon carbon dioxide cause cent century cephalic index changes characters chromosomes civilization climate color common copper crops cultivated culture danger Darwin death rate destroy disease domestic early earth eggs environment Europe European evidence fact feeble-minded females fish forms germ cells given heredity human Ibid important increase Indians individual inheritance insane insects iron killed known land later light living male man's marriage metals miles natural selection nature Negro neolithic organisms ovum oxygen Pará rubber tree parasites physical population possible pounds present problems produced R. S. LULL race seeds seems social South South America species square mile supply T. H. MORGAN temperature things thousand tion to-day trees tropics types United wild woman women