It must be borne in mind that until less than a century ago it was man's custom to dissociate himself wholly from the less highly developed animals and plants which he employed so freely for his support and convenience. He set himself on the highest pinnacle, as it were, of the edifice of life, believing himself to be independent of the influences by which the rest of the building was dominated. And thus through countless ages he suffered, languished, and died, unconscious that the forces he had learned more or less to control in husbandry and farmyard were in their turn controlling him in the conduct of his life. Ignorant alike of the influences of his own inherited nature or of those of his environment, he paid no heed to the responsibilities of transmitting the torch of life undimmed to succeeding generations, and gave no thought to utilising to his own personal perfecting the resources of Nature, which he habitually employed to increase his wealth or to improve his crops and stock. It was indeed to the control of his _surroundings_ that man first gave more or less careless heed. The fact that environment can either stimulate or stunt both physical and mental powers, thrust itself too persistently on his attention to be ignored; but the influence of a good parentage or of sound ancestry was less obvious, and for generations received little or no attention. Vague talk on "family temper," "family habits," "family voices" was common enough, but no more than a passing curiosity was aroused as to their hidden import, nor was their profound significance suspected. Thus, though half a century has passed since Darwin placed man[92] "in his proper position in the sequence of biological forms," during which interim enormous strides have been made in applying to the betterment of human existence the principles found to hold good in the case of lowlier type of life, public sentiment has so far only supported sanitary reforms directed to the promotion of improved environment. And this in spite of Sir Francis Galton's[93] first appeal in the cause of eugenics more than forty years ago. The distinguishing characteristics of progressive races and the right of every unborn child to be the offspring of healthy, self-respecting, virtuous parents have been repeatedly pointed out; while attention is drawn to the accumulating evidence in favour of the fact that of all influences upon the individual his inherited nature is the most powerful. Yet the public ear remains deaf to the cry that the present generation is largely responsible for the weal or woe of their children's children. This is not the place in which to discuss Darwin's theory of heredity nor its subsequent elaboration and amplification by his contemporaries or successors.[94] But the time is come when emphasis _must_ be laid upon the duty of gaining some general acquaintance with the subject and its applications in the case of an Imperial people.