DEMONSTRATION XI. Have the audience select some simple geometrical
figure, such as a square, triangle, circle, right angle, etc., and
proceed to draw it in the same way as the figures in the demonstrations
just described. Have the Transmitter hold the figure in his mind and
_mentally draw it_ as you proceed. A little private practice will enable
you to draw these figures easily, and in fact, they are really simpler
than numbers, although more startlingly effective at times.