Ask some one to tie your wrists together with a handkerchief, and then
to pass a cord between your arms behind your tied wrists, and hold the
ends securely. Have towel or cloth thrown over your hands, and after a
very brief interval tell the person who holds the ends of the cord to
pull. When he does so, the latter will pass from your hands and fall on
the floor. You remove the cloth, and show that your wrists are still
tied together.
EXPLANATION.--When your hands are covered, move your elbows out, which
will separate your wrists, push the second finger of your right hand
between them, and with it pull the bight of the cord through the bandage
round your wrists, slip it over one hand, and when your assistant pulls
the cord it will pass off clear of your hands.