... Anthony Benezet may be considered as one of the most zealous, vigilant, and active advocates which the cause of the oppressed Africans ever had... 
Thomas Clarkson 「The History of the Rise, Progress and Accomplishment of the」
...The only effect which this advice had upon me, was to make me more vigilant when I went out at night...
Thomas Clarkson 「The History of the Rise, Progress and Accomplishment of the」
...
"Be vigilant with respect to the matter of theestablishment of Agadeer, and of M'saud ElHayanie...
Abd Salam Shabeeny 「An Account of Timbuctoo and Housa Territories in the Interior of Africa」
...It need not be a very strong watch, but it must be a vigilant one; therefore each watch will be kept under the supervision of an officer who will be responsible for the vigilance of the men under him...
Harry Collingwood 「A Middy of the Slave Squadron」
..."William Penn" and other friends in Washington were most vigilant, and knew where to find passengers who were daily thirsting for deliverance...
William Still 「The Underground Railroad」
...But at daybreak, on going down to the corral, wefound all still and vigilant...
J. Emerson Tennent 「Sketches of the Natural History of Ceylon」
...I had disturbed a buck ibex accidentallyone morning, and, after watching him a long distance with the glass,observed him to take up a position and commence the vigilant processpreviously mentioned...
Robert A. Sterndale 「Natural History of the Mammalia of India and Ceylon」
...There are vigilant birds, always alert, who seemnever to get robbed or molested in any way: thesehave big high nests, made with piles of stones...
George Murray Levick 「Antarctic Penguins」
...Seldom,however, does she succeed in gaining admittance to the Churinche’snest, as he is extremely vigilant and violent in repelling intruders...
P. L. Sclater 「Argentine Ornithology, Volume I (of 2)」
...Nature keeps her vast domainpatrolled by these vigilant watchers by day and by night...
Neltje Blanchan 「Birds Every Child Should Know」
...The great point is, to be careful and vigilant,to attend to nature and the instincts of the suffering cattle, and lendyourselves to both...
Honoré Bourguignon 「On the cattle plague: or, Contagious typhus in horned cattle. Its history, origin, description, and treatment」
...Besides, I have vigilant assistants...
J. Henri Fabre Alexander Teixeira de Mattos 「The Life of the Fly」
..."A man of excellent parts, both in divinity and knowledge of thelaws: very vigilant and active he was for the good both of theecclesiastical and civil state...
W.D. Sweeting 「The Cathedral Church of Peterborough」
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