Up to our present half-century the process of winning animals and plants to domestication, and of improving them after they had been thus won, has been in its nature a matter of haphazard. Here and there, as men have seen creatures which promised in captivity to afford either pleasure or profit, they have endeavored to convert them to use. In some cases the effort has been made with some patience and steadfastness of purpose. If the creature yielded quickly to the needs of a new life which it was sought to impose upon him, he became a member of man's family. If its wilderness motives were strong, the effort to domesticate was soon abandoned. The greater part of these efforts to win animals and plants into alliance with our race have been made with the creatures which were native in the wildernesses about our ancestral dwelling-places. Occasionally from distant lands important gains have been made, especially among the food-giving plants; but all the animals of any importance which have been adopted by the Aryan people were originally natives of the lands in which that race has dwelt. It is a remarkable fact that no sooner does a wild animal or plant become intimately associated with man, than it at once departs more or less widely from its ancient type. Our conquests from the vegetable world have to a great extent so far lost their original character that we can no longer determine the species from which they sprang. Botanists cannot find the wild forms which have given us the cabbage, wheat, and most other small grains, and a host of other important varieties. So, too, the origin of our dogs is as yet unsolved and bids fair ever to remain a mystery. In addition to this changed character which we observe in the forms of domesticated animals and plants alike, we note that the mental characteristics of the former undergo vast alterations. The creatures, in a way, take the tone of civilization, and to a great extent abandon those ancient habits of fear and rage which were essential to their life in the wilderness. The intellectual condition of our dogs shows us that the creatures may be progressively educated--in a word, that man may put into them something of his human quality. In the case of the dog, the longest possessed and most familiar to our households of all our captives, the mental change which has come, partly by selection, from association with man has gone so far that the species may be fairly said to have replaced its pristine motives with those which it has derived from ourselves. In many cases it has become, so far as its ways are concerned, even more man than dog.