...George and Milli then took up again the problem of saving the outerearth from the threatened invasion... 
Various 「Astounding Stories, August, 1931」
...Their own immediate problem seemed gone...
Various 「Astounding Stories, August, 1931」
...This problem, he realized, was his problem—his to solve with thehelp of the other two...
Various 「Astounding Stories, August, 1931」
...he plane sped on through the night under control of her gyro-pilot asthe three men racked their brains for a solution of the problem...
Various 「Astounding Stories, August, 1931」
...As I scanned the acres ofrough moor and then looked at the sea lapping delicately on the grey sand I hadthe feeling that a knotty problem was before me...
John Buchan 「Mr. Standfast」
...All this for Malicorne, whose mind being fully occupied by his own love affair and personal ambition, was a problem he had not applied himself to solve...
Alexandre Dumas, Pere 「Ten Years Later」
...The sleeping problem vexed Korak...
Edgar Rice Burroughs 「The Son of Tarzan」
...Once inside, the problem became simpler since Tarzan followed closelyin the rear with his sharp spear point, an unremitting incentiveto forward movement on the part of the lion...
Edgar Rice Burroughs 「Tarzan the Untamed」
...But bruises faded into nothing, and weariness as well, as his mind began to dwell on the new complication to his problem...
Talbot Mundy 「King--of the Khyber Rifles」
...It was long ere light dawned on the ancient problem and gave me a clear idea of the drainage...
Henry M. Stanley 「How I Found Livingstone」
...Thus perished, in the prime of life, that heroic traveller, at the very time when he had good reason to believe that he was about to solve the problem of the Niger’s course...
W.H.G. Kingston 「Great African Travellers」
...Thus, with very humble means, by the energy and courage of two unpretending men, was the long-disputed problem of the course of the Niger at length completely solved...
W.H.G. Kingston 「Great African Travellers」
... If the second copyis also defective, you may demand a refund in writing without furtheropportunities to fix the problem...
Abd Salam Shabeeny 「An Account of Timbuctoo and Housa Territories in the Interior of Africa」
...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」
...They believed the problem was to be solved by eschewing politics andputting money in the purse...
Ida B. Wells-Barnett 「Southern Horrors」
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