...George and Milli then took up again the problem of saving the outerearth from the threatened invasion... 
Various 「Astounding Stories, August, 1931」
..., problem, question...
Gustavo Adolfo Becquer 「Legends, Tales and Poems」
...“But has the problem been well put? Have I brought out of the solution according to the wishes or the foresight of your royal highness?” ...
Alexandre Dumas, Pere 「The Man in the Iron Mask」
...As they were approaching the Hotel Plougastel once more, he announced that he had solved the problem...
Rafael Sabatini 「Scaramouche」
...My problem was to give ground as slowly as possible and atthe same time not to delay too long, for retreat we must, with the Bochesending in brand-new divisions each morning...
John Buchan 「Mr. Standfast」
...It was late when Tarzan sought a swaying couch among the trees beneathwhich slept the apes of Kerchak, and he was still absorbed in thesolution of his strange problem when he fell asleep...
Edgar Rice Burroughs 「Jungle Tales of Tarzan」
...While Tarzan pondered his problem concerning the future of his balu,Fate was arranging to take the matter out of his hands...
Edgar Rice Burroughs 「Jungle Tales of Tarzan」
...Seemingly there was to beno solution of the problem until another priest stepped forth and,raising his hand, addressed La...
Edgar Rice Burroughs 「Tarzan and the Jewels of Opar」
... Passion was not sweeping them off their feet—not yet, for they were very young, and life had not as yet presented to them its most unsolvable problem...
Baroness Orczy 「El Dorado」
...Consequently,there developed steadily, irresistibly, a vast social problem,which required two centuries and a half for a nation oftrained European stock and boasted moral fibre to solve...
W. E. B. Du Bois 「The Suppression of the African Slave Trade to the United States of America」
...We must face the fact that this problem arose principally fromthe cupidity and carelessness of our ancestors...
W. E. B. Du Bois 「The Suppression of the African Slave Trade to the United States of America」
...His little black eyes were constantly roving over the dishes, studying out the problem of what was further necessary, or had become unnecessary...
Henry M. Stanley 「How I Found Livingstone」
...Enough surely had been accomplished towards the solution of the problem that had exercised the minds of his scientific associates of the Royal Geograpical Society...
Henry M. Stanley 「How I Found Livingstone」
...But, as we had started to solve the problem of the Rusizi River, such considerations had no weight with us...
Henry M. Stanley 「How I Found Livingstone」
...Here then is a problem left for the future explorer to determine...
David Livingstone 「The Last Journals of David Livingstone, in Central Africa, from 1865 to His Death, Volume II (of 2), 1869-1873」
...The problem seemed absolutely insoluble; and at length I came to the conclusion that the only thing to be done was to leave the issue to destiny...
Harry Collingwood 「A Middy of the Slave Squadron」
...The attorney for the company airily says: "The labor problem willnot be formidable...
Richard Harding Davis 「The Congo and Coasts of Africa」
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