Some readers may remember the publication many years ago of highly coloured lithographs of mazes, of bizarre design, generally emanating from the Continent and sold for a penny or twopence. An old scrap-book seen by the writer contains some specimens of this nature, published in Brussels. In some the "nodes" are occupied by various objects which, according to the printed instructions, have to be visited in a given order. One design, generously tinted in all the colours of the spectrum, is labelled "Le Jardin Chinois," although there is nothing distinctively Chinese about it except the absence of all resemblance to anything European. One may still purchase in the toy-shops coloured labyrinths of this kind, mounted on cardboard, with spaces at various points of the path for the accommodation of counters, which are moved progressively in accordance with the throws of dice by the competing players. Some very ingenious applications of the labyrinth idea have been evolved by modern designers of toys and games. [Illustration: FIG. 144.--Maze Toy by A. Brentano. (After Patent Specification.)] Perhaps the most popular toy of this nature on the market is that of the "Pigs in Clover" type, consisting of a series of concentric interrupted circular walls, the innermost of which constitutes the goal into which the player strives to roll all the marbles--usually three in number--which are seen through the glass cover (Fig. 144). This toy was patented by A. Brentano in 1889. Some skill is required to get all the marbles into the central compartment at the same time. Another toy of this character is seen in Fig. 145. It consists of a rather complicated maze formed of ridges, between which the player rolls a ball or a globule of mercury from the point marked A to that marked B, or _vice versa_. This was patented by S. D. Nix in 1891. A somewhat similar arrangement, but with the addition of magnetism as the motive force, is that devised by J. M. Arnot in 1894, and shown in Fig. 146. In this case the maze is not flat but is in the form of a shallow dome; the balls are of iron and are rolled not by tilting the box but by moving a magnet beneath it. [Illustration: FIG. 145.--Maze Toy by S. D. Nix. (After Patent Specification.)] R. A. Cuthbert and W. Bevitt patented in 1889 a toy in which a ball, called "The Man in the Maze," is rolled about inside a small closed box, the internal partitions of which cannot be seen but are indicated on the outside of the case. The "Man" is invisible during his journey. At about the same time a somewhat similar toy was brought out by J. Proctor, in which, however, the travelling ball can be watched through the glass top, the puzzle element in this case consisting of the use of circular holes of two sizes for communicating between adjacent compartments, one size being just large enough to permit of the passage of the ball, the other just too small (Fig. 147).