“Of course, as the tube is open at the top, the effect doesn’t last very long. The compressed air gradually expands again and becomes too thin to support the ball any longer. I dare say by this time it has done so.” (Lift tube, exposing ball, and re-closing tube). “Yes, here it is.”
“I can keep the air from escaping to a certain extent, because I happen to have a very strong won’t. A strong will is a good thing to have, but sometimes a strong won’t is even more useful. Once again I will fill the tube with compressed air.” (Make believe to do so, then pick up the closed tube.) “I drop the ball in again, and this time it will remain suspended till I permit the compressed air to escape.” (Pick up tube, holding it vertically a few inches above the table.) “Say when you would like the ball to fall. Now? Good! I withdraw my strong won’t and the ball falls at once.” (Switch loop, allowing it to do so, then pass tube, closing it, to opposite hand and load into it duplicate ball at top; then replacing tube on table.)
“Now, by way of variety, we will try compressing the ball instead of the air.” (Pick up ball left on table and make believe to transfer it to the opposite hand. Then, with the left hand empty, make pretence of crushing it into the hand.) “The ball is now resolved into its component atoms. You didn’t see them go? No, of course you didn’t. For the time being they are dematerialised: but the compressed air in the tube will soon solidify them again.” (Lift tube, keeping ball suspended.) “It has not got solid yet, but we shall not have long to wait.” (After a few moments again lift tube, opening it and allowing ball to pass through.) “Here is the ball, now as solid as before.”
Transfer tube closed to opposite hand and in so doing load in red ball at top. In replacing tube on table open and close it again, so that the ball shall fall, but shall rest within the tube on the table.
“Now I will show you another curious effect. A ball which has been dematerialised in that way becomes very sensitive to colour. I will just give the ball a rub with this red silk handkerchief and drop it into the tube again.” Drop in white ball after rubbing, keeping tube closed; then raise it and show red ball at bottom.
“Here it is again, you see, but it has taken the colour of the handkerchief and is now a rosy red, a sort of maiden’s blush; the blush of a very shy maiden. Unfortunately maiden’s blush is not a fast colour, unless it’s the wrong kind; the kind that’s rubbed in with a powder puff. This kind soon gets pale again. I rub the ball again, this time with a white handkerchief, and again drop it into the tube.”
Drop in red ball, tube closed, lift and show white ball, under cover of its appearance transferring tube to opposite hand and allowing red ball to run back into palm to be got rid of a moment later.
“I think I heard a lady say, ‘Where is the red ball?’ This is the red ball, at least it was the red ball a moment ago. There is no other, for, as you see, the tube is empty.”
Again drop tube over candle as in Fig. 30. Pass ball from hand to hand and finally make believe to swallow it, meanwhile dropping it into the profonde.
“After being treated like this the ball becomes so volatile that I used to be always losing it. But I never lose it now. I just swallow it and then I know just where it is when I want it. It saves a lot of trouble.”