relayed from the Grand Hotel.

S.B. from London.

" by " Dateller."

S.B. to all Stations except Newcastle.
The reception of programmes broadcast from the surface of the earth is to-day a commonplace; to pick up signals from aeroplanes is equally simple; the hydrophone has enabled us to transmit submarine noises; it remains, then, to broadcast from under the earth's surface, and this we propose to do to-night.
From 8.0. to 8.30 listeners will hear many of the noises inseparable from the working of a great coal mine. The mine in question is the Nunuery Colliery, near Sheffield, and the microphone will be placed in the Park Gate Seam, at a depth of 750 feet below ground level. The distance from the pit-shaft to the face of the seam is one mile.
The various noises to be heard will be explained by the Manager of the mine, and will include :
1. COAL CUTTER. 2. SHOT BORER.
3. EXPLOSION OF SHOT. 4. FALL OF COAL.
5. FILLING OF TUBS. 6. NOISE OF TRAINS.
7. SIGNALLING APPARATUS OF
THE CAGES.

S.B. from London.