Naturally, he now had no trouble in securing a publisher and in making very advantageous terms for the production of the book. It was brought out by the Harpers of New York, though, as before, Prescott himself owned the plates. His contract allowed the Harpers to publish five thousand copies for which they paid the author $7500, with the right of publishing more copies if required within the period of one year and on the same general terms. An English edition was simultaneously brought out by Bentley in London, who purchased the foreign copyright for £650. Three Spanish translations appeared soon after, one in Madrid in 1847 and two in Mexico in 1844. A French translation was published in Paris, by Didot in 1846, and a German translation, in Leipzig, by Brockhaus in 1845. A French reprint in English appeared in Paris soon after Bentley placed the London edition upon the market. No historical work written by an American has ever been received with so much enthusiasm alike in America and in Europe. Within a month, four thousand copies were disposed of by the Harpers, and at the end of four months the original edition of five thousand had been sold. The reviewers were unanimous in its praise, and an avalanche of congratulatory letters descended upon Prescott from admirers, known and unknown, all over the civilised world. _Ferdinand and Isabella_ had brought him reputation; the _Conquest of Mexico_ made him famous. Honours came to him unsought. He was elected a member of the French Institute[13] and of the Royal Society of Berlin. He had already accepted membership in the Royal Spanish Academy of History at Madrid and in the Royal Academy of Sciences in Naples. Harvard conferred upon him the degree of Doctor of Laws. Perhaps nothing pleased him more, however, than a personal letter from Humboldt, for whom Prescott had long entertained a feeling of deep admiration. This eminent scholar, at that time the President of the Royal Society of Berlin, in which body Niebuhr, Von Raumer, and Ranke had been enrolled, wrote in French a letter of which the following sentences form a part:--