and in so far it reveals the structure of its progenitor. In two
groups | groups 1859 1860 1861 |
| or more groups 1866 1869 1872 |
| animals, 1860 1861 1866 1869 1872 | | animal, 1859 |
| at present 1859 1860 1861 1866 | at present 1869 1872 |
| habits, 1859 1860 1861 1866 1869 | | habits 1872 |
| if 1859 1860 1861 1866 1869 |
| in their adult condition, if 1872 |
| the same or 1859 1860 1861 |
| closely 1866 1869 1872 |
| assured 1859 1860 1861 1869 1872 | | almost assured 1866 |
| have both 1859 1860 1861 | | have 1866 | | all are 1869 1872 |
| the same or nearly similar parents, 1859 1860 1861 |
| the same parent-form, 1866 |
| one parent-form, 1869 1872 |
| in that degree 1859 1860 1861 |
| OMIT 1866 1869 1872 |
| descent. 1859 1860 1861 |
| descent; but dissimilarity in embryonic development does not prove discommunity of descent, for in one of two groups all the developmental stages may have been suppressed, or may have been so greatly modified as no longer to be recognised, through adaptations, during the earlier periods of growth, to new habits of life. 1866 |
| descent; but dissimilarity in embryonic development does not prove discommunity of descent, for in one of two groups the developmental stages may have been suppressed, or may have been so greatly modified through adaptation to new habits of life, as to be no longer recognisable. 1869 1872 |
| 1 blocks not present in 1859 1860 1861 1866 1869; present in 1872 | | Even in groups, in which the adults have been modified to an extreme degree, community of origin is often revealed by the structure of the larvæ; we have seen, for instance, that cirripedes, though externally so like shell-fish, are at once known by their larvæ to belong to the great class of crustaceans.
|
| It will reveal this community of descent, however much the structure of 1859 1860 1861 |
| Community of descent will, however, often be revealed, although the structure of 1866 |
| Even in groups, in which 1869 |
| adult 1859 1860 1861 1866 | | adults 1869 |
| may 1859 1860 1861 1866 | may 1869 |
| modified and obscured; 1859 1860 1861 |
| greatly modified and thus obscured; 1866 |
| modified to an extreme degree, community of origin is often revealed by the structure of the larvæ; 1869 |
| cirripedes 1859 1860 1861 | | cirripedes, 1866 1869 |
| can 1859 1860 1861 |
| though externally so like shellfish, can 1866 |
| though externally so like shell-fish, are 1869 |
| be recognised 1859 1860 1861 1866 | | known 1869 |
| as belonging 1859 1860 1861 1866 | | to belong 1869 |
| embryonic state of each species and group of species partially 1859 1860 1861 |
| embryonic state of each species and group of species 1866 |
| structure of the embryo generally 1869 |
| embryo often 1872 |
| the 1859 1860 1861 |
| more or less completely the 1866 |
| more or less plainly the 1869 1872 |
| their 1859 1860 1861 1866 | | its 1869 | | the 1872 |
| ancient progenitors, 1859 1860 1861 1866 |
| and ancient progenitor, 1869 |
| and ancient progenitor of the group, 1872 |
| clearly 1859 1860 1861 | clearly 1866 1869 1872 |
| of life should resemble 1859 1860 1861 1866 |
| so often resemble 1869 |
| so often resemble in their adult state 1872 |
| their descendants,— our 1859 1860 1861 |
| our 1866 |
| OMIT 1869 1872 |
| species. 1859 1860 1861 |
| species, their descendants. 1866 |
| species in the same class. 1869 |
| species of the same class. 1872 |
| law 1859 1860 1861 1866 | | universal law 1869 1872 |
| but I am bound to confess that I only hope 1859 1860 1861 1866 |
| and I hope 1869 |
| and we may hope hereafter 1872 |
| the law hereafter proved 1859 1860 1861 1866 |
| it hereafter shown in most cases 1869 |
| the law proved 1872 |
| can 1859 1860 1861 1866 | | can, 1869 1872 |
| be 1859 1860 1861 1866 | | however, be 1869 1872 |
| in 1859 1860 1861 | | only in 1866 1869 1872 |
| alone 1859 1860 1861 | alone 1866 1869 1872 |
| state, 1859 1860 1861 1866 | | state 1869 1872 |
| now supposed to be represented in existing embryos, 1860 1861 1866 |
| now supposed to be represented in many embryos, 1859 |
| of the progenitor of the group 1872 |
| OMIT 1869 |
| not 1859 1860 1861 1869 1872 | not 1866 |
| obliterated, 1859 1860 1861 | | obliterated 1866 | | wholly obliterated 1869 | | wholly obliterated, 1872 |
| either 1859 1860 1861 1869 1872 | | neither 1866 |
| the 1859 1860 1861 1866 | the 1869 1872 |
| in a long course of modification 1859 1860 1861 |
| OMIT 1866 1869 1872 |
| supervened 1860 1861 1866 1869 1872 | | super- vened 1859 |
| age, or 1859 1860 |
| period of growth, or 1861 1869 1872 |
| period of growth, nor 1866 |
| the 1859 1860 1861 1866 | | such 1869 1872 |
| period 1859 1860 1861 1866 1869 | | age 1872 |
| supposed 1859 1860 1861 1866 | supposed 1869 1872 |
| of resemblance of ancient forms of life 1859 1860 1861 1866 |
| may be true, but yet, owing 1869 1872 |
| embryonic stages of recent forms, may be true, but yet, owing to the 1859 1860 1861 1866 |
| OMIT 1869 1872 |
| incapable 1859 1860 1861 1866 1872 | | in- capable 1869 |
|
/1860_Origin_F376_467.jpg)
