The Climates of the World, in Reference to Their Effects on Man's General Welfare and Destiny.

It the race of man, then, in all its varieties, affords general expression of the existing climates of the world, in reference to the circumstances which contribute to healthy organization; if one climate maintains, while another modifies more or less the characteristics of human beings, as is undoubtedly the case, it cannot be out of season to make this investigation: With what result to his own physical conformation and moral character, and more especially to that of his descendants does man, born in a congenial climate, emigrate at random into different zones?