All About Inventions and Discoveries
The Romance of modern scientific and mechanical Achievements

Contents CHAPTER 1 Wireless Telegraphy...........................i The Work of Hertz—Marconi Experiments to Adapt the Hertzian Waves to the Transmission of Telegraphic Signals —Early Experiments at Home—The Evolution of the Coherer for Detecting Wireless Signals—Marconi’s Coming to England and Early Experiments—Wireless Telegraphy across the Channel— The Attempt to Span the Atlantic— The Value of the Invention to Navigation—Various Applications of Etheric Telegraphy. CHAPTER 11 The Discovery of Cheap Steel • ... 28 The Story of the Invention which Revolutionised the Steel Industry—Sir Henry Bessemer and His Work. CHAPTER 111 The Story of Coal-gas___________________________ The Discovery of Coal-gas—A Novel Drawing-room Amusement—The Commercial Exploitation of the Discovery— Foundation of the First Gas Supply Company—Public Hostility towards the Idea—The Argand Burner—Water Gas—The In- vention of the Incandescent Mantle—Cooking and Heating by Gas—How Gas is Derived from Coal—The Products Derived from Coal, such as Aniline Dyes, Explosives, Tar, Sugar, etc.— The Modern Dependence upon Coal-gas.