It is suggested, therefore, that the bridge watch, or the master, assure themselves, if possible, that the engines are at rest and the way off the vessel before the boats are launched. It is also strongly recommended that, due to the possibility of the boats on the weather side of the ship not being available, the full lifeboat capacity on cargo ships be carried on each side so that full capacity may be available at all times. It is strongly and earnestly recommended that on all vessels entering the War Zone, or the dangerous areas, the passengers and crew be kept fully prepared (so far as may be possible or the navigation of the vessel permits), for speedy and immediate disembarking, or abandoning ship in case of emergency, and that the crew be furnished with life preservers of such character as to allow the free use of the arms in rowing and boat launching. All should be warmly clad without unnecessary or hindering incumbrance. The requirements and suggestions herein set forth should be met promptly and generously, and it is expected that all concerned will cooperate in making better and safer conditions in the navigation of dangerous areas. Local inspectors, however, will not unnecessarily delay vessels from proceeding on their voyage to ports of the Allied Governments if it is not possible to meet these requirements previous to the appointed time of departure. GEO. UHLER, _Supervising Inspector General_. +Zig-zag.+ The great utility of zig-zagging is recognized. The Zig-zag control apparatus, marketed by Captain Arthur N. McGray of New York, has special advantages, and watch officers should master its use. +Bearings.+ Get bearings, +bow and beam+, +two point+, or +cross+, at every opportunity. Get +vertical angles+, +horizontal angles+, +tangents+, wherever possible. +Fix+ the vessel as often as you can. If the vessel carried a three-armed protractor, get the horizontal angles between any three objects that are visible, and favorably situated with reference to the vessel, +and are plotted on the chart+. +Lights.+ See all light houses, and light ships, when you expect to, or call the Captain. +Azimuths—Amplitudes.+ Get azimuths and amplitudes at every favorable opportunity and see the results carefully entered in the deviation log, so the Captain can inspect them. +Sights.+ Get sights as often as possible on the watch. With clear horizon at twilight, get stars east and west, and north and south. Such a fix is often most important. Check up all dead reckoning by observations. +Hydrographic Reports.+ The report blanks furnished by the Hydrographic Office should be carefully filled out and forwarded. This duty is usually given to one of the junior officers.