The Physical Basis of SocietyD.Appleton, 1928 - 526 من الصفحات |
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الصفحة xxi
... Average yields per acre , 1909-1913 , of seven important crops in four European countries expressed in percentage of average yields in the United States 253 12. Yearly averages of cotton production , consumption , and exports in the ...
... Average yields per acre , 1909-1913 , of seven important crops in four European countries expressed in percentage of average yields in the United States 253 12. Yearly averages of cotton production , consumption , and exports in the ...
الصفحة 3
... average man knows is apparent to every one except himself . How much he can know is a matter of uncertainty about which he is not disturbed . That the wisest man knows but little is the conviction of every ignoramus . On one thing all ...
... average man knows is apparent to every one except himself . How much he can know is a matter of uncertainty about which he is not disturbed . That the wisest man knows but little is the conviction of every ignoramus . On one thing all ...
الصفحة 11
... average duration of two thousand years , regardless of ex- ternal conditions , with the release of tremendous energy . If the ninety - two elements are arranged in tabular form based on atomic weights , we have what is called the ...
... average duration of two thousand years , regardless of ex- ternal conditions , with the release of tremendous energy . If the ninety - two elements are arranged in tabular form based on atomic weights , we have what is called the ...
الصفحة 15
... average positions , just as the parts of an iron bridge quiver when a train goes over it . It is difficult to realize that the atoms and molecules of substances which appear to be perfectly at rest → the table , a piece of paper , the ...
... average positions , just as the parts of an iron bridge quiver when a train goes over it . It is difficult to realize that the atoms and molecules of substances which appear to be perfectly at rest → the table , a piece of paper , the ...
الصفحة 23
... average depth of 12,000 feet . The atmosphere stretches up and up , getting rarer and rarer , till at 15 miles above the earth's surface 24/25 of it are left below . Yet there is air suffi- cient to produce white heat in meteors , as ...
... average depth of 12,000 feet . The atmosphere stretches up and up , getting rarer and rarer , till at 15 miles above the earth's surface 24/25 of it are left below . Yet there is air suffi- cient to produce white heat in meteors , as ...
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طبعات أخرى - عرض جميع المقتطفات
عبارات ومصطلحات مألوفة
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