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bles it with facility to assume those habits which fit it to subsist in every region.  His goodness appears in forming the world for man, and, therefore, in not confining him, like the inferior animals, to a bounded range, beyond which he cannot pass, either for the acquisition of science, or the convenience of subsistence.  And both his beneficence, and wisdom are seen in mingling in the human frame such principles as, under a prudent direction, always tend to counteract the hazards of a new situation.  Fat contributes to protect the vitals from the dangerous effects of extreme cold.  Whence we see, in the wise arrangements of divine providence, that animals which are destined to run wild in the forest, not only increase their coat of hair, or fur, but augment their fat, at the approach of winter.  But, this covering being too warm for southern latitudes, provision has been happily made for throwing it off, in those regions, by a more profuse perspiration.  The physical cause of this effect ought to have been no secret to a philosopher who treats of human nature.  Not to mention other effects of the relaxing influence of heat, or the bracing power of cold, on the human constitution, and the nature, or the quantity of nourishment it can receive and digest, in the one case, or in the other, it is sufficient to obser4ve, that the copious perspiration, which takes place in southern latitudes, carries off the oily with the aqueous parts, and, in consequence, tends to render the habit of body thing; but a frigid climate, by closing the pores, and obstructing the evaporation of the oils, while the aqueous fluid more easily escapes, condenses them into a coat of fat, which contributes to preserve the warmth of the animal system.  Experience verifies this influence of climate.  The northern tribes which issued from the forests of Germany, and overrun the southern provinces of the Roman empire, no longer retain their primitive grossness, and their vast size.  The human constitution, in Spain, and other countries to the South of Europe is slender in comparison with the German of Tacitus.  And Europeans, in general, have become more slender by emigrating to the southern provinces of America.  Here is a double experiment made, within the memory of history, on entire nations.  The argument, therefore, which this writer thought to derive from the fatness of northern, or the leanness of southern nations, is utterly inconclusive for the purpose for which he urges it, the proof of an original difference in the species of men.