By the Rev. J. C. LAMBERT, M.A., D.D. The Romance of Missionary Heroism By G. FIRTH SCOTT The Romance of Polar Exploration By CHARLES R. GIBSON, F.R.S.E. The Romance of Modern Photography The Romance of Modern Electricity The Romance of Modern Manufacture The Romance of Scientific Discovery By CHARLES C. TURNER The Romance of Aeronautics By HECTOR MACPHERSON, Junr. The Romance of Modern Astronomy By ARCHIBALD WILLIAMS, B.A. (Oxon.), F.R.G.S. The Romance of Early Exploration The Romance of Modern Exploration The Romance of Modern Mechanism The Romance of Modern Invention The Romance of Modern Engineering The Romance of Modern Locomotion The Romance of Modern Mining By EDMUND SELOUS The Romance of the Animal World The Romance of Insect Life By AGNES GIBERNE The Romance of the Mighty Deep By E. S. GREW, M.A. The Romance of Modern Geology By J. C. PHILIP, D.Sc., Ph.D. The Romance of Modern Chemistry By E. KEBLE CHATTERTON, B.A. The Romance of the Ship The Romance of Piracy By T. W. CORBIN The Romance of Submarine Engineering The Romance of War Inventions By NORMAN J. DAVIDSON, B.A. (Oxon.) The Romance of the Spanish Main SEELEY, SERVICE & CO., LIMITED. * * * * * CONTENTS CHAPTER PAGE I. HOW PEACEFUL ARTS HELP IN WAR 17 II. GUNPOWDER AND ITS MODERN EQUIVALENTS 27 III. RADIUM IN WAR 39 IV. A GOOD SERVANT, THOUGH A BAD MASTER 49 V. MINES, SUBMARINE AND SUBTERRANEAN 61 VI. MILITARY BRIDGES 75 VII. WHAT GUNS ARE MADE OF 92 VIII. MORE ABOUT GUNS 108 IX. THE GUNS THEY USE IN THE NAVY 120 X. SHELLS AND HOW THEY ARE MADE 135 XI. WHAT SHELLS ARE MADE OF 146 XII. MEASURING THE VELOCITY OF A SHELL 159 XIII. SOME ADJUNCTS IN THE ENGINE ROOM 164 XIV. ENGINES OF WAR 169 XV. DESTROYERS 184 XVI. BATTLESHIPS 191 XVII. HOW A WARSHIP IS BUILT 202 XVIII. THE TORPEDO 215 XIX. WHAT A SUBMARINE IS LIKE 223 XX. THE STORY OF WIRELESS TELEGRAPHY 240 XXI. WIRELESS TELEGRAPHY IN WAR 252 XXII. MILITARY TELEGRAPHY 264 XXIII. HOW WAR INVENTIONS GROW 276 XXIV. AEROPLANES 284 XXV. THE AERIAL LIFEBOAT 297 INDEX 313 LIST OF ILLUSTRATIONS