TO TIE AN INSTANTANEOUS KNOT IN A HANDKERCHIEF
Hold the handkerchief in both hands; give it a twist; blow on it, and a knot instantly appears in its centre.
Hold the handkerchief as shown in [Fig. 5].
Fig. 5.
Then while in the act of blowing on it bring the hands together quickly, throw the end a, held in the right hand, between the two middle fingers of the left hand and over b; at the same time grasp b between the two middle fingers of the right hand ([Fig. 6]); pull a under b with the left 46 hand and b under a with your right, and the knot is made. With practice you will be able to do this imperceptibly.
Fig. 6.