The Physical Basis of SocietyD. Appleton and Company, 1916 - 406 من الصفحات |
من داخل الكتاب
النتائج 1-5 من 32
الصفحة 9
... ment is peculiar in that it has the remarkable power of entering into union with itself as well as with other substances and is thus able to build up large molecules containing a great number of atoms which form the basis of living ...
... ment is peculiar in that it has the remarkable power of entering into union with itself as well as with other substances and is thus able to build up large molecules containing a great number of atoms which form the basis of living ...
الصفحة 34
... ment by centuries or millenniums of survival in health and vigor . It is a simple matter of mathematics to show that the intensity of light under the zenith sun in the tropics is the greatest and that the proportion of rays per unit of ...
... ment by centuries or millenniums of survival in health and vigor . It is a simple matter of mathematics to show that the intensity of light under the zenith sun in the tropics is the greatest and that the proportion of rays per unit of ...
الصفحة 42
... ment of the next world , Hell , in terms of heat ; while the Eskimo , accustomed to great cold , thought a place of con- stant heat would be most desirable and to him it became Heaven . Our languages will show our main interests . The ...
... ment of the next world , Hell , in terms of heat ; while the Eskimo , accustomed to great cold , thought a place of con- stant heat would be most desirable and to him it became Heaven . Our languages will show our main interests . The ...
الصفحة 49
... ment thereto is the basis and start of all man's vaunted achievements as well as the limits thereof . SUGGESTIONS FOR READING CHAMBERLIN , T. C. Origin of the Earth . 1915 . CONN , H. W. CRILE , G. W. The Story of the Living Machine ...
... ment thereto is the basis and start of all man's vaunted achievements as well as the limits thereof . SUGGESTIONS FOR READING CHAMBERLIN , T. C. Origin of the Earth . 1915 . CONN , H. W. CRILE , G. W. The Story of the Living Machine ...
الصفحة 51
... ment is favorable . We must now consider the various ways in which the different forms of life affect each other . The reader is warned not to interpret all the phenomena to be mentioned as if they resulted from some conscious purpose ...
... ment is favorable . We must now consider the various ways in which the different forms of life affect each other . The reader is warned not to interpret all the phenomena to be mentioned as if they resulted from some conscious purpose ...
طبعات أخرى - عرض جميع المقتطفات
عبارات ومصطلحات مألوفة
Africa America appeared Australoid average bacteria basis become believe biological birds birth-rate black bass blood body born brain breeding carbon carbon dioxid cause cent century cephalic index changes characters child chromosomes civilization color considered crossing Darwin death death-rate discovered discoveries disease earth eggs environment Europe European evidence evolution exist eyes fact feeble-minded female forms germ cells given groups hair head HEMOPHILIA hence heredity human Huntington's chorea Ibid Inasmuch inches increase individuals inheritance insane insects Kallikak Family known large numbers less living long-headed male man's mated Mendelian ment mental Mongols natural selection nature Negrito Negro normal organisms ovum parents physical plants and animals possible produced race relatively seems skin social society soil species spermatozoon square mile temperature thought tion traits woman women yellow yellow fever
مقاطع مشهورة
الصفحة 155 - Some drill and bore The solid earth, and from the strata there Extract a register, by which we learn, That he who made it, and revealed its date To Moses, was mistaken in its age.
الصفحة 139 - I happened to read for amusement ' Malthus on Population,' and being well prepared to appreciate the struggle for existence which everywhere goes on from long-continued observation of the habits of animals and plants, it at once struck me that under these circumstances favourable variations would tend to be preserved, and unfavourable ones to be destroyed. The result of this would be the formation of new species. Here then I had at last got a theory by which to work...
الصفحة 58 - Near villages and small towns I have found the nests of humble-bees more numerous than elsewhere, which I attribute to the number of cats that destroy the mice.
الصفحة 139 - In October 1838, that is, fifteen months after I had begun my systematic enquiry, I happened to read for amusement Malthus on Population, and being well prepared to appreciate the struggle for existence which everywhere goes on from long-continued observation of the habits of animals and plants, it at once struck me that under these circumstances favourable variations would...
الصفحة 54 - It may be doubted whether there are many other animals which have played so important a part in the history of the world, as have these lowly organized creatures.
الصفحة 186 - The two parents between them contribute on the average onehalf of each inherited faculty, each of them contributing onequarter of it. The four grandparents contribute between them one-quarter, or each of them one-sixteenth ; and so on, the sum of the series i + J + i + TV + , being equal to 1, as it should be.
الصفحة 126 - This fool wishes to reverse the entire science of astronomy; but sacred Scripture tells us that Joshua commanded the sun to stand still, and not the earth.
الصفحة 58 - I am tempted to give one more instance showing how plants and animals, remote in the scale of nature, are bound together by a web of complex relations.
الصفحة 159 - I can conceive in biology would be the discovery of the instability which leads to the continual division of the cell. When I look at a dividing cell I feel as an astronomer might do if he beheld the formation of a double star: that an original act of creation is taking place before me.
الصفحة 58 - I have also found that the visits of bees are necessary for the fertilization of some kinds of clover; for instance, 20 heads of Dutch clover (Trifolium repens) yielded 2,290 seeds, but 20 other heads protected from bees produced not one.