... question been asked, when a frightful explosion shook the iceberg to its foundations. The Doctor rushed to the gasbag. It was empty. He frowned. Lord JOHN was smoking his pipe; the Colonel was turning over the pages of an old Algebra. He muttered to himself, "That ought to figure it out. If x the amount of non-compressible fluid consumed by a given labourer in y days, find, by the substitution of poached ... — Punch, Or The London Charivari, Vol. 100. February 21, 1891 • Various
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