 This is a legitimate and on the whole a good working hypothesis. The questionable point is whether the sum of the differences can be obtained from the individually small variations by simple addition. I very much doubt it. I doubt especially if simple...  Natural science and religion, 2 lectures - Стр. 76авторы: Asa Gray - 1880Полный просмотр - Подробнее о книге
 | 1880 - Страниц: 820
...seems to class him with Mivart, whose name, we believe, he never mentions. Thus he says, on page 76 : " While I see how variations of a given organ or structure...modification, I cannot conceive how non-existent organs com* thus to be, how wholly new parts are initiated, how any thing can be led on which is not there... | |
 | Asa Gray - 1880 - Страниц: 136
...way in which continually or occasionally arising small differences may be added up into large suras in the course of time. This is a legitimate and on...can be led on which is not there to be taken hold o£ Nor am I at all helped in this respect by being shown that the new organs are developed little... | |
 | Joseph Cook - 1880 - Страниц: 304
...simple addition is capable of congruously adding up such different denominations. That is, while I sec how variations of a given organ or structure can be led on to great modification, I cannot conceive ho-.v non-existent organs come thus to be, how wholly new parts are initiated, how any thing can be... | |
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