Let us now consider the improvements in methods of communication. The carrying of letters and papers by the great postal system of our government, is done chiefly on the steam cars and steamboats, which have already been described. You know, however, that by means of the telegraph and the telephone messages can be transmitted much more promptly than by mail. Both these modes of communication are recent. Before they were invented, various methods were used to transmit intelligence quickly. You learned how, by the firing of cannon along the canal, in two hours it was announced in New York that the first boat was starting down the Erie Canal. A thousand years ago, beacon-fires were lighted along the coasts of England to warn people of the approach of an enemy; a hundred years ago, similar signals were used in our own country. Sometimes a wood fire was kindled, sometimes a pot of tar was set on fire. At the beginning of the nineteenth century, the semaphore was used to some extent. This consists of a horizontal bar, set on a high post. By changes in its position, according to a method of signals agreed upon, messages are sent. Flags are used for signals and messages are sent by placing flags of different colors and shapes in different positions; this is less practicable on land than at sea where the range of vision is uninterrupted. Another method of signaling is by mirrors to reflect the sunlight. But all these methods have inconveniences and are limited to comparatively short distances. Early in the nineteenth century, scientists thought that electricity which can be conducted by wires from place to place might be utilized to carry messages. This was at last successfully accomplished by an American, Samuel Finley Breese Morse. Morse was born in Massachusetts in 1791 and was given the names of his father, his grandfather, and his great-grandfather. As befitting a child with the reputation of so many to sustain, his education began early. At four he was sent to what was called a “dame school” conducted by an old lady in the neighborhood. At seven he was sent away from home to attend a preparatory school; later he went to an academy; and thence at fifteen to Yale College. At Yale he was much interested in some experiments with which a professor illustrated a lecture on electricity. It seemed to young Morse that this great force which travels with such wonderful speed ought to be put to some use. During vacation he made many experiments in the college laboratory.