Sixth Edition,

Consisting of Entertaining Philosophical

QUESTIONS and ANSWERS.

on subjects relating to

AIR, WATER, LIGHT, and FIRE,

Intended for the use of Schools, and for Youth of both sexes.

By W. S. KENNY.

"This is a little book, designed for the use of young people, but which many of mature age may also peruse with great advantage, for it abounds in useful and pleasant information."—Examiner.