Glanvil who wrote in the middle of the 17th century says, "To those that come after us, it may be as ordinary to buy a pair of wings to fly into the remotest regions, as now a pair of boots to ride a journey. _And to confer, at the distance of the Indies, by sympathetic conveyances_, may be as usual to future times as to us is literary correspondence." He further remarks, "Antiquity would not have believed the almost incredible force of our cannons, and would as coldly have entertained the wonders of the telescope. In these we all condemn antique incredulity. And it is likely posterity will have as much cause to pity ours. But those who are acquainted with the diligent and ingenious endeavours of true philosophers will despair of nothing." In 1633 the Marquis of Worcester suggested a scheme of telegraphing by means of signs. Another, but similar scheme, was mooted in 1660 by the Frenchman Amonton. In 1763 Mr. Edgeworth erected for his private use a telegraph between London and Newmarket. But it was in 1789 that the Optical Telegraph came into practical use in France--Claude Chappe was the inventor. When he was a boy, he contrived a means of communication by signals with his brothers at a distance of two or three miles. He laid down the first line between Lille and Paris at a cost of about two thousand pounds, and the first message sent along it was the announcement of the capture of Lille by Condé. This led to the construction of many similar lines communicating with each other by means of stations. Some idea of the celerity with which messages were sent may be gained from the fact that it took only two minutes to reproduce in Paris a sign given in Lille at a distance of 140 miles. On this line there were 22 stations. The objections to this system lay in its being useless at night and in rainy weather. The French system of telegraph consisted of one main beam--the regulator, at the end of which were two shorter wings, so that it formed a letter Z. The regulator and its flags could be turned about in various ways, making in all 196 signs. Sometimes the regulator stood horizontally, sometimes perpendicularly. Lord Murray introduced one of a different construction in England in 1795 consisting of two rows of three octangular flags revolving on their axis. This gave 64 different signs, but was defective in the same point as that of Chappe. Poor Chappe was so troubled in mind because his claim to be the inventor of his telegraph was disputed, that he drowned himself in a well, 1805. Besides the fact that the optical telegraph was paralysed by darkness and storm, it was very difficult to manage in mountainous and well-wooded country, and required there a great number of stations.