 | 1894 - 518 pàgines
...of their parts ; so much so, in fact, that we can often distinguish the embryos only by their size. In my possession are two little embryos in spirit,...birds, or very young Mammalia, so complete is the mode of formation of the head and trunk in these animals." This, I think, shows quite clearly Darwin's... | |
 | Charles Darwin - 1861 - 470 pàgines
...of their parts ; so much so, in fact, that we can often distinguish the embryos only by their size. In my possession are two little embryos in spirit,...have omitted to attach, and at present I am quite imable to say to what class they belong. They may be lizards, or small birds, or very young mammalia,... | |
 | Charles Darwin - 1864 - 472 pàgines
...of their parts ; so much so, in fact, that we can often distinguish the embryos only by their size. In my possession are two little embryos in spirit,...to what class they belong. They may be lizards, or email birds, or very young mammalia, so complete is the similarity in the mode of formation of the... | |
 | Woolhope Naturalists' Field Club - 1869 - 402 pàgines
...say to what class they belong. They may be lizards, they may be small birds, or very young mammals ; so complete is the similarity in the mode of formation of the head and trunk. The extremities have not yet made their appearance. But even if they existed in the earliest stage,... | |
 | Charles Darwin - 1870 - 468 pàgines
...of their parts ; so much so, in fact, that we can often distinguish the embryos only by their size. In my possession are two little embryos in spirit,...have omitted to attach, and at present I am quite imable to say to what class they belong. They may be lizards, or small birds, or very young mammalia,... | |
 | Joel Moody - 1871 - 358 pàgines
...development of their parts ; so much in fact that we can often distinguish the embryos only by their size. In my possession are two little embryos in spirit...similarity in the mode of formation of the head and trunk of these animals. The extremities are still absent in these embryos, but. even if they existed in the... | |
 | George St. Clair - 1873 - 280 pàgines
...to distinguish the embryos of mammal, bird, lizard, or snake. "In my possession," says Von Baer, " are two little embryos in spirit, whose names I have omitted to attach, and at 1 Principles of Biology, i. 309, 381. present I am quite unable to say to what class they belong. They... | |
 | Charles Darwin - 1875 - 504 pàgines
...distinguish the embryos only by their size. " In my possession are two little embryos in spirit, whoso names " I have omitted to attach, and at present I..." mode of formation of the head and trunk in these animal*. The "extremities, however, are still absent in these embryos. But " oven if they had existed... | |
 | Arthur Cayley Headlam - 1878 - 578 pàgines
...say to what class they belong. They may be lizards, they may be small birds, or very young mammals ; so complete is the similarity in the mode of formation of the head and trunk. The extremities have not yet made their appearance. But even if they existed in the earliest stage,... | |
 | George Henry Lewes - 1877 - 584 pàgines
...say to what class they belong. They may be lizards, they may be small birds, or very young mammals ; so complete is the similarity in the mode of formation of the head and trunk. The extremities have not yet made their appearance. But even if they existed in the earliest stage... | |
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In my possession are two little embryos in spirit, whose names I have omitted to attach, and at present I am quite unable to say to what class they belong. They may be lizards or small birds, or very young mammalia, BO complete is the similarity in the... 
