This is easily done in the following manner. Take care that the knife is very lightly stuck into the wood, so that it will fall at the slightest touch.
Fill a glass with water, and raising it to the knife immerse the handle to the height of an inch or so. Then watch where the drop of water, which will fall when you remove the glass, strikes the ground, place the cent upon the spot, and you will find that the knife will fall upon that identical place.
“That is the Man”
Fold a piece of paper into four, and cut a pointer out of it, as shown in [Fig. 30]. Now run a needle through a cork and balance the pointer on its tip, as shown. Place an inverted tumbler over the whole contrivance ([Fig. 30a]).
Fig. 30.—The paper pointer.
Fig. 30a.—Pointer mounted on cork.
By rubbing the outside of the tumbler with a piece of rag, or even a handkerchief, you can make the pointer turn in whatever direction you desire, as it will swing round to whatever portion of the glass you happen to rub.
Announce that you will make it point to Mr. Jones. If you then rub the glass on the side nearest to that gentleman, the paper needle will swing round and point directly to him.