Christmas parties this year will possess a new and fascinating attraction, both for young and old, in the shape of the latest wonder of wireless telephony. In many homes this season a novel entertainment is being provided by means of radio-telephony apparatus fitted with a Loud Speaker'. The voice of the unseen reciter transmitted from a central broadcast station, perhaps a hundred miles away, is carried through space until electric waves strike the wires of the indoor frame aerial, and, after passing through the receiving set, are converted into audible speech emitted from the loud-speaking trumpet.'