and the economic environment which man has made. Now in the early stages of human development, it is the natural environment, the fertility of the soil, climatic conditions, abundance of game, fish, etc., which is all-important, but with the progress of civilization, the natural environment loses in relative importance, and the economic environment (machinery, factories, improved appliances, etc.) grows in importance until in our day the economic environment has become well nigh all-important. Hence the inadequacy of the Henry George theory which places all its stress on one element of the natural environment, land, and wholly neglects the dominant economic environment.
But while this economic environment, the dominant factor in human life, is the child of the brain of man, man in its creation has been forced to work within strict limitations. He had to make it out of the materials furnished him in the first place by the natural environment and later by the natural environment and the inherited economic environment, so that in the last analysis the material and economic factors are supreme.
We Marxians are often accused of neglecting the intellectual factor and, as Deville says, a
