...For the marshal and his generalscould not yet resolve on abandoning to the enemy so many trophies; nordid they make up their minds to it until after fruitless exertions, andin the last extremity... 
George Grote 「The Two Great Retreats of History」
...His sense of duty, indeed, should have kept him fast in Port Royal; but his sense of duty was smothered in hatred—that most fruitless and corruptive of all the emotions...
Rafael Sabatini 「Captain Blood」
...She took it for granted that the bull would climb as high as he couldtoward Gazan and then, finding that he could not reach him, resume hispursuit of her, which she knew would prove equally fruitless...
Edgar Rice Burroughs 「Jungle Tales of Tarzan」
...In the end, however, my hunt proved fruitless, for after atime the traces of blood ceased and the surface of the ground becamerocky, so that I was no longer able to follow the spoor...
J. H. Patterson 「The Man-eaters of Tsavo and Other East African Adventures」
...On four occasions previous to the final one he had made fruitless efforts to escape from his tormentors in consequence of brutal treatment...
William Still 「The Underground Railroad」
...A fruitless effort for education...
Henry Bibb 「Narrative of the Life and Adventures of Henry Bibb, an American Slave, Written by Himself」
...Presently (after several more fruitless entreatieswhich reduced the dog to a paroxysm of barking)she led her collie out of the enclosure, stranglingher sobs as she went...
Albert Payson Terhune 「Lad: A Dog」
...You should always check a wild dog in racing afterpigeons and small birds on their rising; whereas you should encourage atimid dog—one who clings to "heel"—in such a fruitless but excitingchase...
Dinks, Mayhew, and Hutchinson 「The Dog」
...No matter how great the ability of both the individual and the dog may be, should their temperaments not be in accord—every attempt will be fruitless...
Henny Kindermann Agnes Blake 「Lola」
...The investigations madethus far for this causal factor have been fruitless...
U.S. Department of Agriculture 「Special Report on Diseases of Cattle」
...Tired of all these fruitless attempts, I ended where I ought to havebegun: I went to Carpentras...
Jean Henri Fabre Alexander Teixeira de Mattos 「The Glow-Worm and Other Beetles」
...At last after all these fruitless attempts, the Scolia succeeds in achieving the correct position...
J. Henri Fabre 「More Hunting Wasps」
...She departed, indeed, but madefour and twenty fruitless attempts before returning with the evidence offecundation...
Francis Huber Anonymous 「New observations on the natural history of bees」
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