The petitioner and the master of the _Lusitania_ received certain advices from the British Admiralty on February 10, 1915, as follows: "Vessels navigating in submarine areas should have their boats turned out and fully provisioned. The danger is greatest in the vicinity of ports and off prominent headlands on the coast. Important landfalls in this area should be made after dark whenever possible. So far as is consistent with particular trades and state of tides, vessels should make their ports at dawn." [Sidenote: Advices from the British Admiralty.] On April 15 and 16, 1915, and after the last voyage from New York, preceding the one on which the _Lusitania_ was torpedoed, the Cunard Company and the master of the _Lusitania_ received at Liverpool the following advices from the British Admiralty: "Confidential Daily Voyage Notice 15th April, 1915, issued under Government War Risks Scheme. "German submarines appear to be operating chiefly off prominent headlands and landfalls. Ships should give prominent headlands a wide berth. "Confidential memorandum issued 16th April, 1915: [Sidenote: Fast steamers follow a zigzag course.] "War experience has shown that fast steamers can considerably reduce the chance of successful surprise submarine attacks by zigzagging--that is to say, altering the course at short and irregular intervals, say in ten minutes to half an hour. This course is almost invariably adopted by warships when cruising in an area known to be infested by submarines. The underwater speed of a submarine is very slow and it is exceedingly difficult for her to get into position to deliver an attack unless she can observe and predict the course of the ship attacked." Sir Alfred Booth, Chairman of the Cunard Line, was a member of the War Risks Committee at Liverpool, consisting of ship owners, representatives of the Board of Trade and the Admiralty, which received these instructions and passed them on to the owners of vessels, including the Cunard Company, which distributed them to the individual masters. [Sidenote: Advertisement in the New York papers.] On Saturday, May 1, 1915, the advertised sailing date of the _Lusitania_ from New York to Liverpool on the voyage on which she was subsequently sunk, there appeared the following advertisement in the New York "Times," New York "Tribune," New York "Sun," New York "Herald," and the New York "World," this advertisement being in all instances except one placed directly over, under, or adjacent to the advertisement of the Cunard Line, regarding the sailing of the _Lusitania_: