ADVERTISEMENT.
vii
following volumes is entirely new to the public; but, as only one edition of the former, and two small editions of the latter, have been circulated, there are few persons who can be possessed of either. Besides, as they are on subjects particularly fitted to interest and improve a young mind, they may be given away to youthful readers, disjoined from the general stock; and, in that case, will scarcely be considered as useless duplicates.
