...Can any single species be named from which we may reasonably suppose that all have descended? The Gallus bankiva apparently fulfils every requirement... 
Charles Darwin 「The Variation of Animals and Plants Under Domestication, Vol. I.」
...The densely branchedtops of elms, oaks and hickories had satisfied the requirement forsupport of the house and nearby shelter...
Henry S. Fitch 「Ecological Observations on the Woodrat, Neotoma floridana」
...THE chief requirement inpreserving reptiles is a fine and delicate hand, in order to dealsuccessfully with these mostly thin-skinned objects...
Montagu Browne 「Practical Taxidermy」
...This is all that isrequired, and he has no credit in fulfilling the requirement, since themoment he begins to think of effect, he commits a barbarism bywhitewashing the whole...
John Ruskin 「The Poetry of Architecture」
...If I am rightly informed, the requirement wasthat a ship should be able to determine the Greenwich time within twominutes, after being six months at sea...
Simon Newcomb 「Side-lights on Astronomy and Kindred Fields of Popular Science」
...The greatest requirement of a camel caravan, is some one tokeep the saddles in repair, and so avert sore backs...
Ernest Giles 「Australia Twice Traversed, The Romance of Exploration」
...The historic fact that the bringing of mentogether, and their support by an intelligent and interested community,is the first requirement to be kept in view can easily be explained...
Simon Newcomb 「Side-lights on Astronomy and Kindred Fields of Popular Science」
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