Читать книгу Not Guilty: A Defence of the Bottom Dog - Robert Blatchford - Страница 10

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Now, take a bottle of red beads, and call it male. Take a bottle of blue beads, and call it female.

From each bottle take a portion of beads; mix them in a third bottle and call it "child."

We have now a child of a red father and a blue mother; and we find that this child is not all red, nor all blue, but part red and part blue.

It is like the father, for it has red beads; it is like the mother, for it has blue beads.

It is unlike the father, for the father has no blue, and it is unlike the mother, for the mother has no red.

Here we have a simple illustration of "heredity" and "variation."

Now, could we blame the "child" bottle for having red and blue beads in it; or could we blame the "child" bottle for having no yellow and no green beads in it?

But that is an example of a simple mixture of two ancestral strains. We have to do with mixtures of millions of strains.

Let us carry our illustration forward another generation.

Take our blue and red "child" and marry him to the child of a black bottle and a yellow bottle.

This gives us a marriage between Red-Blue and Black-Yellow.

The "child" bottle mixed from these two bottles of double colours will contain four colours.

He will "inherit" from grandfather Red and grandmother Blue, from grandfather Black and grandmother Yellow, and from father Red-Blue and mother Black-Yellow.

He will be like the six fore-parents, but different from each of them.

Can we blame this "child" bottle for being made up of red, blue, black, and yellow? Can we blame it for having no purple nor white beads in its composition? No. These colours were mixed for the child, and not by it.

How could there be white or purple beads in this bottle, when there were no white nor purple beads in the bottles from which it was filled?

But what of the variation amongst brothers and sisters?

That is easily understood. If the four colours in the ancestral bottles are evenly mixed, the grandchildren bottles will vary from their ancestors, but not from each other.

As we know that brothers and sisters do vary from each other, we must conclude that the hereditary qualities are not evenly mixed.