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" All which seem to have been gradually produced during many generations by the perpetual endeavour of the creatures to supply the want of food, and to have been delivered to their posterity with constant improvement of them for the purposes required. "
Natural History: Its Rise and Progress in Britain as Developed in the Life ... - Page 231
by Henry Alleyne Nicholson - 1886 - 312 pages
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Zoonomia; Or, The Laws of Organic Life, Volume 1

Erasmus Darwin - 1800 - 676 pages
...and others broad ones to filtrate the water of lakes, and to retain aquatic infedls. All which feem to have been gradually produced during many generations by the perpetual endeavour of the creatures to fupply the want of food, and 10 have been delivered to their pofterity with conftant improvement of...
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Zoonomia; Or, The Laws of Organic Life ...

Erasmus Darwin - 1801 - 602 pages
...ones to filtrate the water of lakes, and to retain \ - * aquatic infecls, as ducks. All which feem to have been gradually produced during many generations by the perpetual endeavour of the creatures to fupply the want of food, and to have been delivered to their pofterity with confl ant improvement of...
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Zoonomia, Volume 1

Erasmus Darwin - 1818 - 616 pages
...others broad ones to liltrate the water of lakes, and to retain aquatic insects, as ducks. All which seem to have been gradually produced during many generations...them for the purposes required. The third great want amongst animals is that of security, which seems much to have diversified the forms of their bodies...
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The Torch

412 pages
...parrots, or long beaks, as woodcocks, or broad ones, aa ducks, to filter the water of lakes. All which seem to have been gradually produced during many generations by the perpetual endeavours of the creatures to supply the want of food, and to have been delivered to their posterity,...
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Ornamental and Domestic Poultry: Their History, and Management

Edmund Saul Dixon - 1848 - 388 pages
...Woodcocks ; and others broad ones to filtrate the water of lakes, and to retain aquatic insects. All which seem to have been gradually produced during many generations,...constant improvement of them, for the purposes required. " Would it then be too bold to imagine, that all warmblooded animals have arisen from one living filament,...
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A Treatise on the History and Management of Ornamental and Domestic Poultry

Edmund Saul Dixon - 1857 - 544 pages
...Woodcocks; and others broad ones to filtrate the water of lakes, and to retain aquatic insects. All which seem to have been gradually produced during many generations,...constant improvement of them, for the purposes required. "Would it then be too bold to imagine, that all warmblooded animals have arisen from one living filament,...
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The Principles of Biology, Volume 1

Herbert Spencer - 1864 - 506 pages
...deviations being directly adaptive. Enumerating various appliances for procuring food, ho says they all " seem to have been gradually produced during many generations...constant improvement of them for the purposes required." And the creatures possessing these various appliances, are considered as having been rendered unlike,...
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The Principles of Biology, Volume 1

Herbert Spencer - 1864 - 510 pages
...deviations being directly adaptive Enumerating various appliances for procuring food, he says they all " seem to have been gradually produced during many generations...constant improvement of them for the purposes required." And the creatures possessing these various appliances, are considered as having been rendered unlike,...
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Erasmus Darwin, tr. by W.S. Dallas

Ernst Ludwig Krause - 1879 - 230 pages
...and others " broad ones to filtrate the water of lakes, and " to retain aquatic insects. All which seem to " have been gradually^ produced during many...posterity with " constant improvement of them for the purpose " required. "The third great want among animals is " that of security, which seems much to...
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Erasmus Darwin

Ernst Krause - 1879 - 224 pages
...ones to filtrate the water of lakes, and " to retain aquatic insects. All which seem to '" have leen gradually produced during many " generations by the...creatures to supply the want of food, and to " have leen delivered to their posterity icitlt " constant improvement of them for the purpose " required....
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