The cross-breeding of stock was another subject he had taken up.
In the animal kingdom the mule is a common example of this cross-breeding.
Both the wool and the mutton have been improved by cross-breeding with good stock.
But the Japanese had, so far as can be ascertained, little advantage from cross-breeding.
But the product of a hundred years of cross-breeding was a splendid type of citizenship.
The cause of that lies very likely in the nutrition of the young fry, and perhaps, also, partly in cross-breeding.
They will, without any cross-breeding, occasionally produce white stock that are very pretty, and equally good for laying.
And again, almost all the facts in question are borrowed from cross-breeding between the Whites and other races.
This cross-breeding of families in the remote provinces might be made the subject of many instructive reflections.
The figurative symbol of cowardice: a white feather in a cock's tail being considered a proof of cross-breeding.