History he knew well, for it was a living thing with him. “There,” he would say, pointing to a bend of the river, “there, my boy, do you see those trees? That is where the Prince of Orange cut the dikes to drown the land and save Leyden.” Or he would tell me the tale of the old Meuse, until the broad river ceased to be a convenient harbour and became a wonderful highroad, carrying the ships of De Ruyter and Tromp upon that famous last voyage, when they gave their lives that the sea might be free to all.