... when we were solving our problems in arithmetic—ah! what I have to tell you is learned also... 
Alexandre Dumas, Pere 「Ten Years Later」
...Consequently we oftencongratulate ourselves more on getting rid of a problem thanon solving it...
W. E. B. Du Bois 「The Suppression of the African Slave Trade to the United States of America」
...I believethat he is solving it, and that he will ultimately solve it...
Booker T. Washington, et al. 「The Negro Problem」
...These monuments may prove to be of importance in solving theproblem of the authorship of the celebrated Pistoian frieze...
Various 「The American Journal of Archaeology, 1893-1」
...Each of them attacked,and each of them succeeded in solving, the great problem...
Robert Stawell Ball 「The Story of the Heavens」
...These institutions, if properly managed, have after years of carefulstudy and trial developed elaborate systems of solving the greatproblems of the celestial universe...
Edward C. Pickering 「The Future of Astronomy」
...The problem is one of the greatest delicacy, but a formerofficer of the Case School, one of the most eminent of livingphysicists, devised a method of solving it...
Edward C. Pickering 「The Future of Astronomy」
...The men who entered first upon the task of solving the geographicalproblems of the interior of the Australian continent were doomed to meetwith much bitter disappointment...
Ernest Favenc 「The Explorers of Australia and their Life-work」
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