The rider mounted on the back of the horse, and with a slight jump reached the ceiling of the arena, some hundred feet up. Having no weight left, he bounced by the least muscular effort. Pushing against the ceiling with one of his fingers, he bounded down to the floor of the arena, only to rebound again to the ceiling. He kept this up for a few minutes, and then repeated the same thing sideways, where he hit against the wire netting, stretched from top to bottom of the arena to keep the performer from falling into the audience. The gravitational field extended only vertically, but was not in evidence immediately beyond the sides of the arena. Had there been no screen, the performer, when passing outside the gravitational boundary, would have immediately regained his full weight and would have fallen. The performer could jerk himself around anywhere in the arena, and being a good acrobat, he had no difficulty in reaching his horse. Much care had to be exercised, however, because the slightest kick against the horse would have sent the horse to the opposite side. Slowly the gravitation was turned on, and both horse and rider sank gracefully toward the ground, where with the full gravitation restored, the horse and rider made their exit. The next act was one that even Ralph had not seen. Two experts at juggling bounded into the arena and after the gravitation was cut off one of them placed a billiard cue on his forehead, and an old-fashioned hand lamp on top of the cue. The juggler then took the cue away and withdrew jerkily. The lamp remained in the same position, until brought down by one of the performers. The tricks aroused great enthusiasm among the audience. An acrobat, using one of the billiard cues as a standing trapeze, revolved around the trapeze as if it were held securely in place. By jerking around the billiard cue, it was made to appear as if he was actually swinging around under his full "weight." A beautiful effect was obtained when the jugglers brought several colored glass pitchers, filled with different-colored liquids. When the pitchers were inverted, nothing happened, because the liquid, having no weight, could not flow out. However, by turning the pitcher upside down and suddenly jerking it away the colored liquid, due to its own lag or inertia, stayed behind. Due to the surface tension of liquids, it did not retain the shape of the pitcher, but formed itself immediately into a globe. The jugglers emptied a number of pitchers all in a row, leaving behind the globular liquid balls, formed of water and fruit juices.