for the weakness of man, had bestowed on him reason, invention, and
skill in workmanship. The result of these had produced a science which,
under the name of _Mechanics_, taught us to increase and extend our
limited powers incredibly by the aid of instruments.

Jack remarked that the jack-screw worked very slowly.

"Better slowly, than not at all," said I. "It is a principle in
mechanics, that what is gained in time is lost in power. The jack is not
meant to work rapidly, but to raise heavy weights; and the heavier the
weight, the slower the operation. But, can you tell me how we can make
up for this slowness?"

"Oh, by turning the handle quicker, to be sure!"

"Quite wrong; that would not aid us at all. Patience and Reason are the
two fairies, by whose potent help I hope to get our boat afloat."

I quickly proceeded to tie a strong cord to the after-part of it, and
the other end to a beam in the ship, which was still firm, leaving it
long enough for security; then introducing two more rollers underneath,
and working with the jack, we succeeded in launching our bark, which
passed into the water with such velocity, that but for our rope it would
have gone out to sea. Unfortunately, it leaned so much on one side, that
none of the boys would venture into it. I was in despair, when I
suddenly remembered it only wanted ballast to keep it in equilibrium. I
hastily threw in anything I got hold of that was heavy, and soon had my
boat level, and ready for occupation. They now contended who should
enter first; but I stopped them, reflecting that these restless children
might easily capsize our vessel. I remembered that savage nations made