 It is generally acknowledged that all organic beings have been formed on two great laws — Unity of Type, and the Conditions of Existence. By unity of type is meant that fundamental agreement in structure which we see in organic beings of the same class,...  A New Theory of the Origin of Species - Стр. 209авторы: Benjamin G. Ferris - 1883 - Страниц: 272Полный просмотр - Подробнее о книге
 | 1860 - Страниц: 982
...most formidable difficulty is that of the pro1duction arid specialization of organs. It is well said that all organic beings have been formed on two great laws ; Unity of type, and Adaptation to the conditions of existence.* The special teleologists, such as Paley, occupy themselves... | |
 | Charles Darwin - 1861 - Страниц: 470
...include all those of past times, it must by my theory be strictly true. It is generally acknowleged that all organic beings have been formed on two great...same class, and which is quite independent of their habits of life. On my theory, unity of type is explained by unity of descent. The expression of conditions... | |
 | Charles Darwin - 1864 - Страниц: 472
...Include all those of past times, it must by my theory be strictly true. It is generally acknowleged that all organic beings have been formed on two great...same class, and which is quite independent of their habits of life. On my theory, unity of type is explained by unity of descent. The expression of conditions... | |
 | Charles Darwin - 1866 - Страниц: 668
...include all those of past times, whether known or not yet known, it must by my theory be strictly true. It is generally acknowledged that all organic beings...same class, and which is quite independent of their habits of life. On my theory, unity of type is explained by unity of descent. The expression of conditions... | |
 | Charles Darwin - 1873 - Страниц: 492
...Unit£.of. JEjpe, and the Conditions^of Ejiatence. By_unity of type is meant that fundamental,agreement in structure which we see in organic beings of the...same class, and which is quite independent of their habits of life. On my tneory, / unityjpf type is explained by unity, .of descent. The expression of... | |
 | Charles Darwin - 1875 - Страниц: 504
...include all those of past times, whether known or unknown, it must on this theory be strictly true. It is generally acknowledged that all organic beings...same class, and which is quite independent of their habits of life. On my theory, unity of type is explained by unity of descent. The expression of conditions... | |
 | John Patterson MacLean - 1877 - Страниц: 176
...Semitic family, to say nothing of the time j required for the development of the three general classes. meant that fundamental agreement in structure which...same class, and which is quite independent of their habits of life. On my theory, unity of type is explained by unity of descent." — Darwin's Origin... | |
 | Asa Gray - 1878 - Страниц: 416
...most formidable difficulty is that of the production and specialization of organs. It is well said that all organic beings have been formed on two great laws : unity of type, and adaptation to the conditions of existence. ' The special teleologists, sucli as Paley, occupy themselves... | |
 | Benjamin Wills Newton - 1882 - Страниц: 700
...simply another way of stating what Darwin calls the Law of Unity of Type. Darwin defines it thus : ' By Unity of Type is meant that fundamental agreement...same class, and which is quite independent of their habits of life.' According to thi* law every living thing that comes into the world is compelled to... | |
 | Charles Darwin - 1883 - Страниц: 494
...it must on this theory be strictly true. It is generally acknowledged that all organic beings hare been formed on two great laws — Unity of Type, and...same class, and which is quite independent of their habits of life. On my theory, unity of type is explained by unity of descent. The expression of conditions... | |
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