Fig. 18.—Solution to diamond cross puzzle.

Fig. 19.—Solution to the quarrelsome railways puzzle.

Fig. 20.—Solution to miter puzzle.

11. The Quarrelsome Railways

After much surveying and discussion, the railways laid their lines as shown in [Fig. 19].

12. The Other Railway Problem

The following is the simplest method by which the engine could transpose the cars G, H.