High on the kitchen wall of an old farm-house on a mountain-side in Switzerland there hangs a tiny wooden clock. In the tiny wooden clock there lives a tiny wooden cuckoo, and every hour he hops out of his tiny wooden door, takes a look about to see what is going on in the world, shouts out the time of day, and pops back again into his little dark house, there to wait and tick away the minutes until it is time once more to tell the hour.