British and American Destroyers Operating Hand in Hand--Arrival of Naval Collier "Jupiter"--Successful Trip of Transports Bearing United States Soldiers Convoyed by Naval Vessels--Attack on Transports Warded Off by Destroyers--Secretary Baker Thanks Secretary Daniels--Visit to our Destroyer Base--Attitude of Officers Toward Men--Genesis of the Submarine--The Confederate Submarine "Hunley" CHAPTER VI On a German Submarine--Fight with a Destroyer--Periscope Hit--Record of the Submarine in this War--Dawning Failure of the Undersea Boat--Figures Issued by the British Admiralty--Proof of Decline--Our Navy's Part in this Achievement CHAPTER VII How the Submarine is being Fought--Destroyers the Great Menace--But Nets, Too, Have Played Their Part--Many Other Devices--German Officers Tell of Experience on a Submarine Caught in a Net--Chasers Play Their Part--The Depth-Bomb--Trawler Tricks--A Camouflaged Schooner Which Turned Out To Be a Tartar--Airplanes--German Submarine Men in Playful Mood CHAPTER VIII Perils and Triumphs of Submarine-Hunting--The Loss of our First War-Ship, The Converted Gunboat "Alcedo"--Bravery of Crew--"Cassin" Struck by Torpedo, But Remains in the Fight--Loss of the "Jacob Jones"--Sinking of the "San Diego"--Destroyers "Nicholson" and "Fanning" Capture a Submarine, Which Sinks--Crew of Germans Brought Into Port--The Policy of Silence in Regard to Submarine-Sinkings CHAPTER IX Our Battleship Fleet--Great Workshop of War--Preparations for Foreign Service--On a Battleship During a Submarine Attack--The Wireless That Went Wrong--The Torpedo That Missed--Attack on Submarine Bases of Doubtful Expediency--When the German Fleet Comes Out--Establishment of Station in the Azores CHAPTER X Great Atlantic Ferry Company, Incorporated, But Unlimited--Feat of the Navy in Repairing the Steamships Belonging to German Lines Which Were Interned at Beginning of War in 1914--Welding and Patching--Triumph of Our Navy With the "Vaterland"--Her Condition--Knots Added to Her Speed--Damage to Motive Power and How It Was Remedied--Famous German Liners Brought Under Our Flag CHAPTER XI Camouflage--American System of Low Visibility and the British Dazzle System--Americans Worked Out Principles of Color in Light and Color in Pigment--British Sought Merely to Confuse the Eye--British System Applied to Some of Our Transports CHAPTER XII The Naval Flying Corps--What The Navy Department Has Accomplished And Is Accomplishing in the Way of Air-Fighting--Experience of a Naval Ensign Adrift in the English Channel--Seaplanes and Flying Boats--Schools of Instruction--Instances of Heroism CHAPTER XIII Organization Of The Naval Reserve Classes--Taking Over of Yachts For Naval Service--Work Among The Reserves Stationed at Various Naval Centres--Walter Camp's Achievement CHAPTER XIV