The effect of increasing wealth and population resulting from the power to cultivate the richer soils, in bringing about the division of land and the union of man is then shown, and illustrated by examples drawn from the history of the principal nations of the world, ancient and modern; and here the European system of primogeniture is examined, with a view to show that it is purely artificial, and tends to disappear with the growth of wealth and population. This leads to the discussion of the relations of man to his fellow-men, which are shown to tend to the establishment of equality wherever peace is maintained, and wealth and population are allowed to grow; and to inequality, with every step in the progress of war and devastation. Man himself next appears on the scene. Mr. Malthus, Mr. Ricardo, and all others of the English School, represent him as the slave of his necessities, working because he fears starvation. Mr. Carey, on the contrary, shows him to be animated by hope, and improving in all his moral qualities, precisely as by the growth of wealth and population--the results of peace--he is enabled to clear and cultivate the rich soils of the earth. Thence we pass to the relations of man and his helpmate, which are shown to improve precisely as do those of man to his fellow-man, as the rich soils are brought into cultivation. Man and his family follow, and the same improvement, under the same circumstances, is shown to take place in the relations of parent and child.