In 1842 Morse made experiments to prove that messages could be carried under water. As water is a good conductor of electricity, it was necessary to insulate the wire, which Morse did by wrapping it with hemp covered with pitch, tar, and rubber. This under-water wire worked well, and a plan was formed to put across the Atlantic a cable resting on the plateau between Newfoundland and Ireland. This scheme was undertaken by Mr. Cyrus W. Field. The first cable made of insulated wire protected by twisted wire rope was broken in the attempt to lay it in 1857. The second cable was laid and it worked a few days. The first message sent by the cable which united Europe and America was “Glory to God in the highest, and on earth peace, good will towards men.” The third cable failed also, but the fourth, laid in 1866, gave good service. For thirteen years Cyrus Field had worked for the cable and at last out of failure had come success. Since the fourth cable was laid, there has been constant communication between Europe and America. The latest great step forward in telegraphy was made by Marconi, an Italian scientist, who invented a system of telegraphing without the use of wires. The telephone has one advantage over the telegraph; it enables a person not only to send messages but to carry on a conversation with persons at a distance. The electric telephone was invented in 1875 by Alexander Graham Bell. His father was a Scotch educator and scientist who invented a method called “Bell’s visible speech” to teach deaf-mutes to speak. Telephones now connect places hundreds of miles apart. As great advances have been made within the last century in methods of lighting houses as in modes of travel and of communication. At the beginning of the nineteenth century, people still used candles and crude lamps, similar to those which had been in use for hundreds of years. The principle of the candle and the lamp is the same; oil or grease, liquid or solid, is burned by means of a wick. During our great-grandfather’s days, well-to-do people used chiefly wax candles and poor people used candles made of tallow. In many families the only light was furnished by pine knots, called lightwood because the pitch burned making a bright light. It was by such a light that Abraham Lincoln studied. About the beginning of the nineteenth century an Englishman invented practical gas-light and carried gas made from coal through his house in pipes. In 1821 illuminating gas was made and used in Baltimore for the first time in this country. About a half-century later, another stride forward was made in the lighting of houses. Edison invented the electric light, the brightest, cleanest, and safest light, and the one requiring least care of any yet devised. There are two kinds of the electric light, both widely used. The incandescent, or “glow lamp” as it is called in England, is most common. The arc light is used for lighting large buildings and city streets.