The Physical Basis of SocietyD. Appleton, 1916 - 406 من الصفحات |
من داخل الكتاب
النتائج 6-10 من 68
الصفحة 18
... cent ; 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 . Corresponding to this is the rainfall . On the North ...
... cent ; 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 . Corresponding to this is the rainfall . On the North ...
الصفحة 19
... cent of protein , while in Russia and Hungary it is 4 to 8 per cent richer . Hot , dry climate decreases the proportion of starch and increases that of gluten . " Moist tropical valleys sheltered from the wind may be very unhealthful ...
... cent of protein , while in Russia and Hungary it is 4 to 8 per cent richer . Hot , dry climate decreases the proportion of starch and increases that of gluten . " Moist tropical valleys sheltered from the wind may be very unhealthful ...
الصفحة 20
... cent of the whole by volume while in Central Europe the percentage is only 1.3 . The percentage of carbon increases during fogs . Air ordinarily contains many impurities , both inorganic and organic . In a cubic meter of air in the Alps ...
... cent of the whole by volume while in Central Europe the percentage is only 1.3 . The percentage of carbon increases during fogs . Air ordinarily contains many impurities , both inorganic and organic . In a cubic meter of air in the Alps ...
الصفحة 21
... cent of all possible sunshine , while Pittsburgh gets from 35 to 58 per cent . It is quite as necessary for the florist to control the moisture as the temperature if he would grow plants under glass . Some plants demand much more ...
... cent of all possible sunshine , while Pittsburgh gets from 35 to 58 per cent . It is quite as necessary for the florist to control the moisture as the temperature if he would grow plants under glass . Some plants demand much more ...
الصفحة 29
... cent of the land can be culti- vated and the same is true of Japan . In Norway 67 per cent of the total area is in bare mountains , lakes , snow fields or bogs , 7.6 per cent in pastures , 2.2 per cent in meadows and 7 per cent in grain ...
... cent of the land can be culti- vated and the same is true of Japan . In Norway 67 per cent of the total area is in bare mountains , lakes , snow fields or bogs , 7.6 per cent in pastures , 2.2 per cent in meadows and 7 per cent in grain ...
طبعات أخرى - عرض جميع المقتطفات
عبارات ومصطلحات مألوفة
acre Africa America appeared Asia average bacteria beetles believe birds body breeding carbon carbon dioxid carnivora cattle cause cent century changes characters chromosomes civilization climate color considered crops cultivated Darwin death destroyed discovered discoveries disease early earth eggs elements elm-leaf beetle environment Europe European evidence evolution existence fact favorable feeble-minded female fish forms germ cells groups growth hence heredity Hessian fly human Ibid important Inasmuch inches increase individuals influence inheritance insects Kallikak Family killed known Lamarck large numbers larvæ less living lower malaria male man's mated natural selection nature normal organisms ovum oxygen parents physical plants and animals population possible produced race reason seeds smallpox social society soil species square mile substances survive temperature theory thought tion trees tropics tuberculosis United women yellow yellow fever