Ball, W. W. Rouse (Walter William Rouse), 1850-1925 · London, Macmillan · leaf 88
CH. IV] GEOMETRICAL RECREATIONS 67 put together so as to make a square tile as shown in the margin We can arrange four such tiles in no less than 256 different ways, making 64 distinct designs. With the use of more tiles the number of possible designs increases with startling rapidity*. I content… … Examples of Tesselated Pavements. If more than two colours are used, the problems become increasingly difficult. As a simple instance take sixteen square tiles, the upper half of each being yellow, red, pink, or blue, and the lower half being gold, green, black, or white, no two tiles being…
