era she had become scarcely more than a human animal, consigned to work and to bear human offspring, much as the animals of the herd were expected to labor and bring forth young. The men of the pastoral ages had great love for their cattle; all the more pity they could not have developed a deeper affection for their wives.

4. The agricultural stage. This era was brought about by the domestication of plants, and it represents the highest type of material civilization. Both Caligastia and Adam endeavored to teach horticulture and agriculture. Adam and Eve were gardeners, not shepherds, and gardening was an advanced culture in those days. The growing of plants exerts an ennobling influence on all races of mankind.

Agriculture more than quadrupled the land-man ratio of the world. It may be combined with the pastoral pursuits of the former cultural stage. When the three stages overlap, men hunt and women till the soil.

There has always been friction between the herders and the tillers of the soil. The hunter and herder were militant, warlike; the agriculturist is a more peace-loving type. Association with animals suggests struggle and force; association with plants instills patience, quiet, and peace. Agriculture and industrialism are the activities of peace. But the weakness of both, as world social activities, is that they lack excitement and adventure.

Human society has evolved from the hunting stage through that of the herders to the territorial stage of agriculture. And each stage of this progressive civilization was accompanied by less and less of nomadism; more and more man began to live at home.

And now is industry supplementing agriculture, with consequently increased urbanization and multiplication of nonagricultural groups of citizenship classes. But an industrial era cannot hope to survive if its leaders fail to recognize that even the highest social developments must ever rest upon a sound agricultural basis.

Man is a creature of the soil, a child of nature; no matter how earnestly he may try to escape from the land, in the last reckoning he is certain to fail. “Dust you are and to dust shall you return” is literally true of all mankind. The basic struggle of man was, and is, and ever shall be, for land. The first social associations of primitive human beings were for the purpose of winning these land struggles. The land-man ratio underlies all social civilization.

Man's intelligence, by means of the arts and sciences, increased the land yield; at the same time the natural increase in offspring was somewhat brought under control, and thus was provided the sustenance and leisure to build a cultural civilization.

Human society is controlled by a law which decrees that the population must vary directly in accordance with the land arts and inversely with a given standard of living. Throughout these early ages, even more than at present, the law of supply and demand as concerned men and land determined the estimated value of both. During the times of plentiful land—unoccupied territory—the need for men was great, and therefore the value of human life was much enhanced; hence the loss of life was more horrifying. During periods of land scarcity and associated