The fourth dimension

1388 THE FOURTH DIMENSION

null beyond it, while the oranges increase in a double way.

Fig. 79.

Suppose this process of enlarging the number of the Null Yellow Nut! Squares to be indefinitely pursued and the total figure obtained to be reduced Red| Orange [Red in size, we should obtain a square of Null) Which the interior was all orange, Null low while the lines round it were red and Fig. 80. yellow, and merely the points null colour, as in fig. 80. Thus all the points, lines, and the area would have a colour. We can consider this scheme to originate thus :—Let a null point move in a yellow direction and trace out a yellow line and end ina null point. Then let the whole line thus traced move in a red direction. The null points at the ends of the line will produce red lines, and end in

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