1888--Electrocution of Criminals adopted in New York State. Harvey’s Process of Annealing Armor Plate. De Laval’s Rotary Steam Turbine. “Kodak” Snap-Shot Camera. Lick Telescope. De Chardonnet’s Process of Making Artificial Silk. 1889--Nickel Steel. Hall’s Process of Making Aluminum. Dudley Dynamite Gun. “Cordite” (Smokeless Powder) produced by Abel and Dewar. 1890--Mergenthaler’s Improved Linotype Machine. Photography in Colors. The Great Forth Bridge finished. Krag-Jorgensen Magazine Rifle. 1891--Parsons’ Rotary Steam Turbine. The Northrup Loom. 1892--The explosive “Indurite” invented by Professor Munroe. 1893--Acheson’s process for making Carborundum. The Yerkes Telescope. Edison’s Kinetoscope. Production of Calcium Carbide in Electric Furnace by Willson. 1894--Discovery of element Argon by Lord Rayleigh and Professor Ramsey. Thorite produced by Bawden. 1895--X-Rays discovered and applied by Roentgen. Acetylene Gas from Calcium Carbide by Willson. Krupp Armor Plate. Lindé’s Liquid air apparatus. 1896--Marconi’s System of Wireless Telegraphy. Buffington-Crozier Disappearing Gun. 1897--Schlick’s System of Balancing Marine Engines. Discovery of Krypton by Ramsey and Travers. 1898--Horry and Bradley’s process of making Calcium Carbide. Discovery of Neon and Metargon by Ramsey and Travers; Coronium by Nasini; Xenon by Ramsey; Monium by Crookes, and Etherion by Brush. Mercerizing Cloth under tension to render it Silky. 1899--Marconi Telegraphs without wire across the English Channel. Oceanic launched, the largest steamer ever built. 1900--The Grande Lunette Telescope of Paris Exposition. CHAPTER III. THE ELECTRIC TELEGRAPH. THE VOLTAIC PILE--DANIELL’S BATTERY--USE OF CONDUCTING WIRE BY WEBER--STEINHEIL EMPLOYS EARTH AS RETURN CIRCUIT--PROF. HENRY’S ELECTRO MAGNET, AND FIRST TELEGRAPHIC EXPERIMENT--PROF. MORSE’S TELEGRAPHIC CODE AND REGISTER--FIRST LINE BETWEEN WASHINGTON AND BALTIMORE--BAIN’S CHEMICAL TELEGRAPH--GINTL’S DUPLEX TELEGRAPH--EDISON’S QUADRUPLEX--HOUSE’S PRINTING TELEGRAPH--FAC SIMILE TELEGRAPHS--CHANNING AND FARMER FIRE ALARM--TELEGRAPHING BY INDUCTION--WIRELESS TELEGRAPHY BY MARCONI--STATISTICS.