A veil of mystery still hangs around the first plan for an electric telegraph, communicated to the _Scots Magazine_ for 1753 by one 'C. M.' of Renfrew. Even the name of this obscure and modest genius is doubtful; but it is probable that he was Charles Morrison, a native of Greenock, who was trained as a surgeon. At this period only the electricity developed by friction was available for the purpose, and being of a refractory nature, there was no practical result. But after Volta had invented the chemical generator or voltaic pile in the first year of our century, and Oersted, in 1820, had discovered the influence of the electric current on a magnetic needle, the illustrious Laplace suggested to Ampère, the famous electrician, that a working telegraph might be produced if currents were conveyed to a distance by wires, and made to deflect magnetic needles, one for every letter of the alphabet. This was in the year 1820; but it was not until sixteen years later that the idea was put in practice. In 1836 Mr William Fothergill Cooke, an officer of the Madras army, at home on furlough, was travelling in Germany, and chanced to see at the university of Heidelberg, in the early part of March, an experimental telegraph, fitted up between the study and the lecture theatre of the Professor of Natural Philosophy. It was based on the principle of Laplace and Ampère, and consisted of two electric circuits and a pair of magnetic needles which responded to the interruptions of the current. Mr Cooke was struck with this device; but it was only during his journey from Heidelberg to Frankfort on the 17th of the month, while reading Mrs Mary Somerville's book on the _Correlation of the Physical Sciences_, that the notion of his practical telegraph flashed upon his mind. Sanguine of success, he abandoned his earlier pursuits and devoted all his energies to realise his invention.