 With tireless industry do the warblers befriend the human race ; their unconscious zeal plays due part in the nice adjustment of Nature's forces, helping to bring about that balance of vegetable and insect life without which agriculture would be in vain....  Miscellaneous Publications - Página 201de Geological and Geographical Survey of the Territories (U.S.) - 1878Vista completa - Acerca de este libro
 | Elliott Coues - 1878 - 838 páginas
...the journey. Others pass more leisurely from tree to tree, in a ceaseless tide of migration, gleaning as they go ; the hardier males, in full song and plumage,...human race; their unconscious zeal plays due part iu the nice adjustment of Nature's forces, helping to bring about the balance of vegetable and insect... | |
 | Elliott Coues - 1878 - 838 páginas
...the journey. Others pass more leisurely from tree to tree, in a ceaseless tide of migration, gleaning as they go; the hardier males, in full song and plumage,...yearlings. With tireless industry do the Warblers belriend the human race; their unconscious zeal plays due part in the nice adjustment of Nature's forces,... | |
 | Charles Abiathar White - 1878 - 836 páginas
...the journey. Others pass more leisurely from tree to tree, in a ceaseless tide of migration, gleaning as they go ; the hardier males, in full song and plumage,...yearlings. With tireless industry do the Warblers betriend the human race; their unconscious zeal plays due part iu the nice adjustment of Nature's forces,... | |
 | Elliott Coues - 1884 - 930 páginas
...ceaseless tide of migration, gleaning as they go; the hardier males, in full song and plumage, load the way for the weaker females and the yearlings....adjustment of Nature's forces, helping to bring about that balance of vegetable and insect life without which agriculture would be in vain. They visit the... | |
 | Pennsylvania. Ornithologist, Benjamin Harry Warren - 1890 - 656 páginas
...Dr. Coues says : " With tireless industry do the warblers befriend the human race ; their vmconscious zeal plays due part in the nice adjustment of nature's forces, helping to bring about that balance of vegetable and insect life without which agriculture would bo in vain. They visit the... | |
 | Joseph Osgood Barrett - 1893 - 40 páginas
...Cones, a reliable ornithologist, comes to their rescue: "With tireless industry do the warblers benefit the human race. Their unconscious zeal plays due part...adjustment of nature's forces, helping to bring about that balance of vegetable and insect life without which agriculture would be in vain. They visit the... | |
 | Elliott Coues - 1894 - 960 páginas
...the journey. Others pass more leisurely from tree to tree, in a ceaseless tide of migration, gleaning as they go ; the hardier males, in full song and plumage,...adjustment of Nature's forces, helping to bring about that balance of vegetable and insect life without which agriculture would be in vain. They visit the... | |
 | Henry Harrison Metcalf, John Norris McClintock - 1899 - 418 páginas
...family. " With tireless industry do the Warblers befriend the human race," writes Dr. Elliot Coues, " their unconscious zeal plays due part in the nice...adjustment of nature's forces, helping to bring about that balance of vegetable and insect life without which agriculture would be in vain. They visit the... | |
 | Henry Harrison Metcalf, John Norris McClintock - 1899 - 406 páginas
...family. " With tireless industry do the warblers befriend the human race," writes Dr. Elliot Coues, " their unconscious zeal plays due part in the nice...adjustment of nature's forces, helping to bring about that balance of vegetable and insect life without which agriculture would be in vain. They visit the... | |
 | 1899 - 406 páginas
...family. " With tireless industry do the warblers befriend the human race," writes Dr. Elliot Coues, " their unconscious zeal plays due part in the nice...adjustment of nature's forces, helping to bring about that balance of vegetable and insect life without which agriculture would be in vain. They visit the... | |
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