We have taken a pretty and comfortable caleche for our three weeks' tour with the Moilliets. But I must tell you of our visit to M. and Madame de Candolle; we went there to see some volumes of drawings of flowers which had been made for him. I will begin from the beginning; Joseph Buonaparte, who has been represented by some as a mere drunkard, did, nevertheless, some good things; he encouraged a Spaniard of botanical skill to go over to Mexico and make a Mexican flora; he employed Mexican artists, and expended considerable sums of money upon it; the work was completed, but the engraving had not been commenced when the revolution drove Joseph from his throne. The Spaniard withdrew from Spain, bringing with him his botanical treasure, and took refuge at Marseilles, where he met De Candolle, who, on looking over his Mexican flora, said it was admirably well done for Mexicans, who had no access to European books, and he pointed out its deficiencies; they worked at it for eighteen months, when De Candolle was to return to Geneva, and the Spaniard said to him, "Take the book--as far as I am concerned, I give it to you, but if my government should reclaim it, you will let me have it." De Candolle took it and returned to Geneva, where he became not only famous but beloved by all the inhabitants. This summer he gave a course of lectures on botany, which has been the theme of universal admiration. Just as the lectures finished, a letter came from the Spaniard, saying he had been unexpectedly recalled to Spain, that the King had offered to him the Professorship he formerly held, that he could not appear before the King without his book; and that, however unwilling, he must request him to return it in eight days. One of De Candolle's young-lady pupils was present when he received the letter and expressed his regret at losing the drawings: she exclaimed, "We will copy them for you." De Candolle said it was impossible--1500 drawings in eight days! He had some duplicates, however, and some which were not peculiar to Mexico he threw aside; this reduced the number to a thousand, which were distributed among the volunteer artists. The talents and the industry shown, he says, were astonishing; all joined in this benevolent undertaking without vanity and without rivalship; those who could not paint drew the outlines; those who could not draw, traced; those who could not trace made themselves useful by carrying the drawings backwards and forwards. One was by an old lady of eighty. We saw thirteen folio volumes of these drawings done in the eight days! Of course some were much worse than others, but even this I liked: it showed that individuals were ready to sacrifice their own _amour propre_ in a benevolent undertaking.