. The butterflies of the eastern United States and Canada [microform] : with special reference to New England. Butterflies; Butterflies; Papillons; Papillons. 1176 THE BUTTERFLIES OF NEW ENGLAND. , i "S^^i. a |)lnnt foreign to its soil that he may have tlic fruit rnady to !u8 hand. Without the natural hindrances wliich prevent its supremacy in its native home, it thrives so vigorously, if otherwise adapted to the place, as to supplant the natural denizens of the soil; these arc supporting nmaerous animals, which in their turn suttcr. So it has douljtless been in all ages of the world, whe
. The butterflies of the eastern United States and Canada [microform] : with special reference to New England. Butterflies; Butterflies; Papillons; Papillons. 1176 THE BUTTERFLIES OF NEW ENGLAND. , i "S^^i. a |)lnnt foreign to its soil that he may have tlic fruit rnady to !u8 hand. Without the natural hindrances wliich prevent its supremacy in its native home, it thrives so vigorously, if otherwise adapted to the place, as to supplant the natural denizens of the soil; these arc supporting nmaerous animals, which in their turn suttcr. So it has douljtless been in all ages of the world, where l)y any of the multifarious means which nature employs she has herself upset the balance she had established, by bringing into a flora or a fauna some new clement from without. Indeed, the history of animal and plant life has been a story of colonization. Any one who has observed the rapidity with which weeds spread over new countries, has read of the ral)l)it nuisance in Aus- tralia or seen the sparrow nuisance in America, will comprehend what a force colonization may have been. It was closely linked no doubt with the introduction of new types in past ages of the world. The measurement of the spread of a newly introduced 8i)ecie8 rarely been attemjjted. Indeed, in the nature of things it could scarcely ever be made except under circumstances whicii may fairly lie deemed artificial, that is, in countries toleral)ly well settled witii people intelligent enough to report acscuratciy. Rarely, too, is tlie date of introduction known. Yet as this could l)e approximately determined for the lOuropean cabbage butterfly recently imported into this country, and as by its ra\:iges of a common garden (nop it would make itself known by the damage it did and so force itself u]ion observation, it was believed that the correct nnjasure of its spread might iiave some import for future investigation, and periuips its lesson for him wiio would designedly introduce a new creature witiiout
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectbutterflies, bookyear
