The Physical Basis of SocietyD.Appleton, 1928 - 526 من الصفحات |
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الصفحة 21
... regions have deposited most of the common salt ( NaCl ) and the liquid remaining is chiefly Epsom and Glauber salts . A similar fate awaits the oceans . In the table of the chemical elements on page 8 no mention was made of such ...
... regions have deposited most of the common salt ( NaCl ) and the liquid remaining is chiefly Epsom and Glauber salts . A similar fate awaits the oceans . In the table of the chemical elements on page 8 no mention was made of such ...
الصفحة 24
... Regions underlain by shale are usually low and flat like the " Black Belt " of Alabama and the Mohawk Valley . The metamorphic rocks resulting from the above are as follows : the limestone is turned into marble , sandstone turns into 24 ...
... Regions underlain by shale are usually low and flat like the " Black Belt " of Alabama and the Mohawk Valley . The metamorphic rocks resulting from the above are as follows : the limestone is turned into marble , sandstone turns into 24 ...
الصفحة 36
... regions otherwise arid . Ammonia might rival it in these regards but am- monia is nowhere common and it has other qualities which are less desirable . Water is a splendid solvent and thus makes possible many of the combinations needed ...
... regions otherwise arid . Ammonia might rival it in these regards but am- monia is nowhere common and it has other qualities which are less desirable . Water is a splendid solvent and thus makes possible many of the combinations needed ...
الصفحة 45
... region of the Great Lakes , 50 per cent ; the Mississippi and Missouri valleys , 45 to 50 per cent ; while Arizona and New Mexico have one of the sunniest climates on earth , only 30 per cent of the days being cloudy . Our rainfall ...
... region of the Great Lakes , 50 per cent ; the Mississippi and Missouri valleys , 45 to 50 per cent ; while Arizona and New Mexico have one of the sunniest climates on earth , only 30 per cent of the days being cloudy . Our rainfall ...
الصفحة 46
... regions of warm countries . Plant Distribution So obvious , indeed , is the paramount importance of water in its ... region brown or white in win- ter and green in summer , where the plants of China will flourish as well as native ...
... regions of warm countries . Plant Distribution So obvious , indeed , is the paramount importance of water in its ... region brown or white in win- ter and green in summer , where the plants of China will flourish as well as native ...
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acres Africa alloy America appears areas Asia atoms average bacteria birds black bass body carbon carbon dioxide cattle cause cells Cenozoic cent century changes chemical chlorophyll climate coal common compounds crops cultivated culture death rate destroy disease distribution domestic animals early earth eaten eggs elements enemies Europe evidence fact fish forms germ germ cells hawk heat horse human hydrogen Ibid important increase Indian insects iron killed known land later light live man's metals mice migration miles moth native nature neolithic nitrogen ocean organisms oxygen Pará rubber tree parasites plants and animals population pounds produce protoplasm R. S. LULL race regions rodents season seeds seems sharp-shinned hawk sheep soil South South America species square mile substances sugar supply surface survive tarpan temperature thousand tion to-day trees tropics types United wild