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Updated: June 8, 2025
Several considerations, however, render the fertility of domestic varieties less remarkable than at first appears. It can, in the first place, be clearly shown that mere external dissimilarity between two species does not determine their greater or lesser degree of sterility when crossed; and we may apply the same rule to domestic varieties.
The general sterility of Attica was the great safety of her people in their early history. "It drove them abroad; it filled them with a spirit of activity, which loved to grapple with danger and difficulty; it told them that, if they would maintain themselves in the dignity which became them, they must regard the resources of their own land as nothing, and those of other countries as their own."
Still it was and is remarkable to see what a clean bill of health in this particular respect our barren soil inherited with its sterility.
My husband's cousin had come up from the city, slightly more fagged and sardonic than usual, and as he stretched himself out in the big porch-chair he was even more caustic than was his wont about the bareness and emotional sterility of the lives of our country people.
My dear Darwin, I beg to enclose what appears to me a demonstration, on your own principles, that Natural Selection could produce sterility of hybrids. If it does not convince you I shall be glad if you will point out where the fallacy lies.
En route, as the train passes beyond Windsor, one says, "Here we are out of sight of land"; and we then understand that it must have been some one from this locality who christened the valley of Annapolis the Garden of Nova Scotia; for here a scene of utter sterility and desolation meets the view: not a foot of earth is to be seen, but rocks are piled in wild confusion everywhere.
The melancholy retired situation of the place was to her insupportable; and as she had the folly, incident to many other women, of believing sterility to be a kind of reproach, she was very much hurt to see that she might fall under that suspicion; for she was persuaded, that although heaven had denied her children, she nevertheless had all the necessary requisites on her part, if it had been the will of the Lord.
The stranger marvels to see such substantially-built houses in the midst of such sterility; but he finds the explanation when he has time to consider that there are so many stones lying about that, where it is possible to plough, the peasant heaps them up in his field, or makes walls that are little wanted.
The fertility of varieties, that is of the forms known or believed to be descended from common parents, when crossed, and likewise the fertility of their mongrel offspring, is, with reference to my theory, of equal importance with the sterility of species; for it seems to make a broad and clear distinction between varieties and species.
'Neither the fine scenery nor the lovely women, Cunningham regrets, 'produced any serious effect on his muse. This is a rash statement. Poets do not sow and reap at the same time not even Burns. If his friends were disappointed at what they considered the sterility of his muse on this occasion, the fault did not lie with the poet, but with their absurd expectations.
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