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HUMBOLDT, ALEXANDRE DE HUMBOLDT, A. de.—"TABLEAUX DE LA NATURE, or Considerations on Deserts, on the Physiognomy of Plants, and on the Cataracts of the Orinoco" Paris: F. Schoell, 1808. Small 8vo, hol. (worn, with flaws) 2 vols. Slight mottling. .