“ Its narrowest point is between Helsingör in Denmark and Helsingborg in Sweden, which are 3 m. apart. Its extreme width, 30 m., is towards the south, where Kjöge Bay indents the coast of Zealand. Three islands lie in it—Hven, belonging to Sweden, and Saltholm and Amager (which is separated from Zealand by a narrow channel at Copenhagen) , belonging to Denmark. The strait between Amager and Saltholm is called Drogden, and is followed by the larger vessels passing through the Sound. The extreme depth of the Sound is about 14 fathoms. ”