As we passed the towns of Montrose and Arbroath during the night, we saw nothing of them.  The wind fell light when off the latter place, and then blew from the south-west, bringing up a thick fog, which shrouded the whole surface of the water.  Papa being told of it, he went on deck, and Dick and I followed him; when he at once hauled the yacht on the wind, and stood off the coast.  After running on for about an hour, the peculiar mournful sound of a bell reached us.  As we stood on, it sounded every half-minute, louder and louder.