hrough by the moving power, and by that which it
moves, are infallible data for estimating the powers of engines. Two
material subjects of experiments, yet remain for the Panorganon;
friction, and wheels of carriages: but we have already extended this
article far beyond its just proportion to similar chapters in this
work. We repeat, that it is not intended in this, or in any other part
of our design, to write treatises upon science; but merely to point
out methods for initiating young people in the rudiments of knowledge,
and of giving them a clear and distinct view of those principles upon
which they are founded. No preceptor, who has had experience, will
cavil at the superficial knowledge of a boy of twelve or thirteen upon
these subjects; he will perceive, that the general view, which we wish
to give our pupils of the useful arts and sciences, must certainly
tend to form a taste for literature and investigation. The _sciolist_
has learned only to _talk_--we wish to teach our pupils to _think_,
upon the various objects of human speculation.

The Panorganon may be employed in trying the resistance of air and
water; the force of different muscles; and in a great variety of
amusing and useful experiments. In academies, and private families, it
may be erected in the place allotted for amusement, where it will
furnish entertainment for many a vacant hour. When it has lost its
novelty, the shaft may from time to time be taken down, and a swing
may be suspended in its place. It may be constructed at the expense of
five or six pounds: that which stands before our window, was made for
less than three guineas, as we had many of the materials beside us for
other purposes.

FOOTNOTES:

[21] When this question was sometime afterwards repeated to S----, he
observed, that the feather would throw down the castle, if its
swiftness were so great as to make up for its want of weight.

[22] Were it thought necessary to make these experiments perfectly
accurate, a segment of a pulley, the radius of which is half the
length of the scale-beam, should be attached to the end of the beam;
upon which the cord may apply itself, and the pulley (P 3) should be
raised or lowered, to bring the rope horizontally from the man's
shoulder when in the attitude of drawing.

[23] The word _power_ is here used in a popular sense, to denote the
strength or efficacy that is employed to produce an effect by means of
any engine.

[24] In all these expe