While there are various objects employed in such play—as, for instance, in the Greek πενταλιθίζειν there were five pebbles, bits of china, or what we call jack-stones, thrown up with one hand and caught on its back, and in the beautiful game of magic rings, and trials of skill with sticks, knives, watches, etc.[269]—still the ball is the most perfect and suitable plaything, partly because it is easy to grasp from any direction and partly on account of its lightness and elasticity. It is equally well adapted to solitary or social play. When alone, the player throws it with a view to its return to the starting point, whether its course be perpendicular or a rebound. A game of skill popular with girls consists in throwing the ball, and before it has time to descend taking another ball from a table, then catching the first one with the same hand.[270] In bilboquet, which was played by Henry III of France, and is known to many primitive peoples, as, for instance the Eskimos, the ball is caught in a cup, to which it is attached by a string. The games are much more varied when two or more play together at throwing and catching, though in that case experimentation is usually transformed into a contest. The kadokadoka of the Gilbert Islanders illustrates a simple and universally known form. Women play it by standing in two opposing lines and throw the ball, which must never be allowed to drop, back and forth.[271] In the Greek οὐφρανία σφᾶιρα the ball was thrown as high as possible, and the contest was over who should catch it, or, if only two were playing, in the agility of the leap for it, as in the Odyssey. The victor must throw the ball aloft again before his feet touch the earth. A game practised by the Indians is apparently of a similar character. “The beginner of the game holds a rather hard ball in his hand, throws it directly up, and attempts to catch it. This is by no means an easy task, for around him stands an eager circle each with hands outstretched to seize the ball. The successful one rushes to an appointed goal, while the others try to hinder him.”[272] The game in which one boy rides on another’s back to throw the ball is illustrated in an Egyptian wall picture, and Bastion saw it also in Burmah. In this, imitation becomes prominent, as does the element of rivalry, where the boys vie with one another in clapping, kneeling, and going through various motions before catching the ball. In most games where the ball is struck the contest develops after it is caught. In playing trapball, the ball is placed on a springboard and sent aloft. All try to catch it, and the victor must bounce the ball until he is supplanted by another. In England, trapball can be traced back to the fourteenth century. Strutt gives an illustration of the spoon-shaped board then used.[273]