The books are intended to be books of instruction rather than of mere amusement; and in perusing them, the reader may feel assured that all the information which they contain, not only in respect to the countries visited, and to the customs, usages, and modes of life that are described, but also in regard to the general character of the incidents and adventures that the young travellers meet with, is in most strict accordance with fact. The main design of the narratives is, thus, the communication of useful knowledge; and every thing which they contain, except what is strictly personal, in relation to the actors in the story, may be depended upon as exactly and scrupulously true.