The magician Professor Warren demonstrates the secret behind a magic trick.
Professor Warren shows the audience a magic trick.
Dressed in an ordinary suit rather than a magicians outfit, the Professor wraps a piece of string around his neck then pulls it and it appears to pass straight through his neck. We then see the secret of the trick. C/U of the Professor's hands as he attaches a piece of cotton to the rope. He then opens out the rope to show the secret piece of cotton holding two pieces of rope together. He places the tied part of the rope at the back of his neck and ties the rope at the front. C/U of the back of the Professor's neck. He pulls on the rope and the cotton snaps. Voila!
This was a Pathe Pictorial item.