The explorers who have succeeded him in the same countries unanimously testify to his exactness, and agree in praising his fidelity, knowledge, and sagacity. "Few travellers," says the Revue Germanique , "have enjoyed in a like degree the faculty of observation. That is a rare gift of nature, like all eminent qualities. He possessed a sort of intuition which discerned the truth, apart from his own observations, and thus information given by him from hearsay has a value that seldom attaches to statements of that nature. His mind, early ripened by reflection and study (he was but in his thirty-third year at the time of his death), invariably went straight to the point. His narrative, always sober, is filled--one may say--rather with things than words; yet his narratives possess infinite cha