...It thus happensthat, though the gregarious instincts of elephants prompt them toform large gatherings, if circumstances necessitate it a herd breaksup under several leaders... 
Robert A. Sterndale 「Natural History of the Mammalia of India and Ceylon」
...Even in this last case, however, it would bemore certainly, and with more speed removed, by a few simple measureswhich necessitate no vast trouble...
Dinks, Mayhew, and Hutchinson 「The Dog」
...So many truffles eaten necessitate so many burrows, which aremere dining-rooms or pilgrim's larders...
J. H. Fabre Bernard Miall 「Social Life in the Insect World」
...The sidereal day and the mean solar day necessitate some means ofregistering time, such as clocks; therefore the original day in use musthave been the apparent solar day...
E. Walter Maunder 「The Astronomy of the Bible」
...A delusion may be morecomforting than the truth, but that does not necessitate the conclusionthat a delusion may be of more ultimate benefit than a constant strivingfor the truth...
Dr. D.M. Brooks 「The Necessity of Atheism」
...Good Friday Harbour, like all coral harbours, requires to be taken byeye, being full of coral knolls, which necessitate the utmost vigilance...
John Lort Stokes 「Discoveries in Australia, Volume 2」
便利！手書き漢字入力検索
この漢字は何でしょう？？