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 motive for some fifteen years before achieving his decisive victory at Rainhill; and Watt was engaged for some thirty years upon the condensing-engine before he brought it to perfection. But there are equally striking illustrations of perseverance to be found in every other branch of science, art, and industry. Perhaps one of the most interesting is that connected with the disentombment of the Nineveh marbles, and the discovery of the long-lost cuneiform or arrow-headed character in which the inscriptions on them are written—a kind of writing which had been lost to the world since the period of the Macedonian conquest of Persia.

An intelligent cadet of the East India Company, stationed at Kermanshah, in Persia, had observed the curious cuneiform inscriptions on the old monuments in the neighbourhood—so old that all historical traces of them had been lost, and amongst the inscriptions which he copied was that on the celebrated rock of Behistun—a perpendicular rock rising abruptly some feet from the plain, the lower part bearing inscriptions for the space of about  feet in three languages—Persian, Scythian, and Assyrian. Comparison of the known with the unknown, of the language which survived with the language that had been lost, enabled this cadet to acquire some knowledge of the cuneiform character, and even to form an alphabet. Mr. (afterwards Sir Henry) Rawlinson sent his tracings home for examination. No professors in colleges as yet knew anything of the cuneiform character; but there was a ci-devant clerk of the East India House—a modest unknown man of the name of Norris—who had made this little-understood subject his study, to whom the tracings were