| Josephus Daniels | Frontispiece |
| FACING PAGE |
| War Chiefs of the Navy, the Secretary and his Advisory Council | 16 |
| A Friendly Bout | 17 |
| School Hour Aboard a Battleship | 17 |
| President Wilson and the War Cabinet | 32 |
| American Dreadnoughts, the Embodiment of Sea Power | 33 |
| American Destroyers in Queenstown Harbor | 52 |
| The Return of the Mayflower | 53 |
| The Surrender of the U-58 | 58 |
| Crew of the Fanning, which sank the U-58 | 59 |
| They, Too, Were Ready | 67 |
| The Seattle and Rear Admiral Albert Gleaves | 68 |
| A Dash through the Danger Zone | 68 |
| The Sinking of the President Lincoln | 80 |
| The Secretary of the Navy with Captain Dismukes and the men who saved the Mount Vernon | 81 |
| The Mount Vernon safely in port after being torpedoed | 81 |
| Brest, Center of the Great System of Naval Operations in France | 112 |
| A German "Sub" and Some of its Enemies | 113 |
| At Gibraltar, Key to the Mediterranean | 124 |
| The Great Mine Barrage against the Submarines | 125 |
| Planting Mines in the North Sea | 128 |
| How the Big Mines in the North Sea Barrage Worked | 129 |
| One of the Perils of Mine-Sweeping | 136 |
| The Mine-Sweepers Proved Wonderful Sea Boats | 136 |
| United States Naval Officers in Important Commands | 137 |
| American and British Naval Officials | 137 |
| The Transport which carried President Wilson to the Peace Conference | 144 |
| Allied Naval Council in Session at Paris | 145 |
| Fifth Battle Squadron Joining the British Grand Fleet | 160 |
| Surrender of the German High Seas Fleet | 161 |
| American Sub-chasers at Corfu, Greece | 168 |
| A Flock of Sub-chasers with their Mother-ship | 169 |
| Gun-crew of the Luckenbach has a Four-Hour Fight with a Submarine | 192 |
| Chief Gunner's Mate Delaney, of the Campana, Defying his Captors | 193 |
| The Merchant Submarine Deutschland | 193 |
| Leaders of the Marines | 208 |
| The Marines in Belleau Wood | 209 |
| Naval Railway Battery Firing from Thierville upon Longuyon | 224 |
| On the Turret Platform of a Battleship | 225 |
| Assembling Naval Airplanes at Brest | 228 |
| A Navy Blimp Leaving Hangar at Guipavas, France | 229 |
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