"The character of a country is the destiny of its people," wrote Harvey Fergusson in _Rio Grande_. Ross Calvin, also of New Mexico, had the same idea in mind when he entitled his book _Sky Determines_. "Culture mocks at the boundaries set up by politics," Clark Wissler said. "It approaches geographical boundaries with its hat in its hand." The engineering of water across mountains, electric translation of sounds, refrigeration of air and foods, and other technical developments carry human beings a certain distance across some of nature's boundaries, but no cleverness of science can escape nature. The inhabitants of Yuma, Arizona, are destined forever to face a desert devoid of graciousness. Technology does not create matter; it merely uses matter in a skilful way--uses it up. Man advances by learning the secrets of nature and taking advantage of his knowledge. He is deeply happy only when in harmony with his work and environments. The backwoodsman, early settler, pioneer plainsman, mountain man were all like some infuriated beast of Promethean capabilities tearing at its own vitals. Driven by an irrational energy, they seemed intent on destroying not only the growth of the soil but the power of the soil to reproduce. Davy Crockett, the great bear killer, was "wrathy to kill a bear," and as respects bears and other wild life, one may search the chronicles of his kind in vain for anything beyond the incidents of chase and slaughter. To quote T. B. Thorpe's blusterous bear hunter, the whole matter may be summed up in one sentence: "A bear is started and he is killed." For the average American of the soil, whether wearing out a farm, shotgunning with a headlight the last doe of a woodland, shooting the last buffalo on the range, trapping the last howling lobo, winging the last prairie chicken, running down in an automobile the last antelope, making a killer's target of any hooting owl or flying heron that comes within range, poisoning the last eagle to fly over a sheep pasture for him the circumstances of the killing have expressed his chief intellectual interest in nature. A sure sign of advancing civilization has been the rapidly changing popular attitude toward nature during recent years. People are becoming increasingly interested not merely in conserving game for sportsmen to shoot, but in preserving all wild life, in observing animals, in cultivating native flora, in building houses that harmonize with climate and landscape. Roger Tory Peterson's _Field Guide to the Birds_ has become one of the popular standard works of America.