sentences:  Under the command of Lieutenant Commander Francis Cromie, "E19" was, in September 1915, the last of five British submarines to manage the passage through the Oresund into the Baltic Sea.She was then able to sink several German ships, most notably on 11 October 1915 when she sank four German freighters just south of Öland within a few hours and without any casualties.On 7 November 1915 "E19" sank the German light cruiser SMS "Undine".