AMONffST tho many remarkable achievements in physical science which the present century ms brought forth, none will be more astound ing than that of the new telegraphy, which electricians have long been groping for, and which now seems to be upon the eva of accomplishment. Before it all pnst achieve ments should pale into insignificance. The idea that wires are necessary to telegraph messages seems to be likely to be relegated to the limbo of autiquated beliefs, and the new telegiaphy without wires opens the door to all aorta of wonderful possibilities. A considerable degree of auccess in this diroction has for some time been attained by Mr VV, H. Preece, the Chief of the Elec tricul Department of the British Postal System. With the ordinary Morse signals he has despatched a number of messages, some of them over 100 words long, solely by the aid of the ether in tho air. But even this achievement has been surpassed by a young Anglo-Italian, 22 years of age, named Marconi. Mr Preece has admitted, that Marconi's system far excels his own, which 16 elcctro-muguet ic. He expresses the fullest fr.ith in Maiconi, describing his inventions as new and beautiful, scientifically speaking,^ and adds (hat he has been instructed by the Postal Department to spare no expense ia testing them to the fullest degree, It is due to Mr Preece that Marconi has received the fullest recognition in England, and that engineers from different departments of the Government are now supervising his work. Marconi was educated in Leghorn, Florence, and Bolonga, and has more recently been following his special study at his house in the last-named city. He speaks Euglish perfectly. He says that for 10 years he has been an ardent student of electricity, and for two years or more he has been working with electric waves on his father's estate in Bolonga. He was using Hertz waves in an apparatus slightly modified from that em ployed by Hertz. In September last he was sending waves through the air, and getting signals at distances of a mile or thereabouts, when ho discovered that the wave that went to his receiver through the air was also affecting anotl eg receiver which he had set up on the othe side of the hill. 