...That aspecies should totally lose so universal an instinct as the maternal one,and yet avail itself of that affection in other species to propagate itself,seems a great mystery...
P. L. Sclater 「Argentine Ornithology, Volume I (of 2)」
...Dogs continue to propagate during life, which is commonly limited tofourteen or fifteen years, yet some have been known to exceed twenty,but that is rare...
Edward Jesse 「Anecdotes of Dogs」
...But nothing could be more absurd than to propagate fromsuch progeny for any other purpose than to make early andprofitable mutton...
Richard L. Allen 「Domestic Animals」
...To improve and fix such varieties, he finds it necessary to encourage the buds at the bases of the most distinctly marked leaves, and to propagate from them alone...
Charles Darwin 「The Variation of Animals and Plants Under Domestication, Vol. I.」
...Such we consider to be the causes which engender and propagate cattletyphus, and which will serve as a basis for the preventive measures tobe employed in order to withstand and check its propagation...
Honoré Bourguignon 「On the cattle plague: or, Contagious typhus in horned cattle. Its history, origin, description, and treatment」
...The means and measures to be employed to meet and resist the firstlocal causes which may generate the typhus, then the secondary causeswhich serve to propagate it...
Honoré Bourguignon 「On the cattle plague: or, Contagious typhus in horned cattle. Its history, origin, description, and treatment」
...There is avery large number of lower organisms which propagate unsexually, or bymonogamy; these are especially the sexless monera (chromacea, bacteria, etc...
Ernst Haeckel 「The Evolution of Man」
...He pledged himself that he would never again, either in wordsor in writing, propagate such heresies; and he swore that he wouldfulfil and observe the penances which had been inflicted upon him...
David Brewster 「The Martyrs of Science, or, The lives of Galileo, Tycho Brahe, and Kepler」
...We had not yet travelled quite so far westward; and but few natives were to be found thereabouts; they were likely therefore to remain for years unmolested, and securely to propagate their species...
David Collins 「An Account of the English Colony in New South Wales, Vol. 1」
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