...As there was no want of wood, Pencroft proposed to the engineer to givea double lining to the hull, so as to completely insure the strength ofthe vessel... 
Jules Verne William Henry Giles Kingston 「Abandoned」
...They were wanted as hostages during the coming war, and this rude contrivance was adopted to insure their presence...
Richard F. Burton 「Two Trips to Gorilla Land and the Cataracts of the Congo Volume 1」
... To the friends of the colored race I appeal for help in this matter, hoping that sufficient interest is taken to insure the accumulation of sufficient funds for my purpose...
Charles Thompson 「Biography of a Slave」
...Now load each end of the choke stick with small laps of wood to insure holding whatever may catch...
A. R. (Arthur Robert) Harding 「Deadfalls and Snares」
...A little loose moss or grass is placed fluffy under tread stick when set to insure the otter going over and not under...
A. R. (Arthur Robert) Harding 「Deadfalls and Snares」
..."In a corral, to be on a tame elephant, seems to insure perfectimmunity from the attacks of the wild ones...
J. Emerson Tennent 「Sketches of the Natural History of Ceylon」
...Their neat shape, their beautiful coats, their cleanlyhabits, their insinuating attention, incessant attendance, andfaithful obedience, insure for them general favour...
Edward Jesse 「Anecdotes of Dogs」
...To insure this, it is sometimes necessary to withdraw the firsthatched, to prevent the old ones wandering before all are out...
Richard L. Allen 「Domestic Animals」
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