Transcriber's Notes:

Two-columns text has been converted to a single column.

Blank pages have been eliminated.

Variations in spelling and hyphenation have been left as in theoriginal.

A few typographical errors have been corrected.

The cover page was created by the transcriber and can be considered public domain.

A MUSICAL PEN

Have you ever heard of one? If you have a gramophone you shouldhave done, for this music pen is the super gramophone needle—itsproper name being Tone Pen, and it is a tiny hollow pen of speciallytempered metal. The reason why the Tone Pen is hollow is important.The solid needle dulls the tone, and after a while wears out the record.

The hollowness of the Tone Pen enables it to translate the most exquisite anddelicate tones. By fixing the Tone Pen point outwards you get the greatestvolume of sound, by turning it sideways you get a softer, mellower tone.

And, above all, you can play from 80 to 100 records with one Tone Pen.You can keep the gramophone going the whole evening without botheringto change the needle. You have to change the ordinary needle withevery record. That means constant jumping up and down and fiddlingwith the gramophone. The Tone Pen saves you, saves your gramophone,gets the very best out of the records, and makes the words ofsongs beautifully clear, which are often unintelligible with other needles.

THREE TONE PENS ARE EQUAL TO THREE HUNDRED ORDINARYNEEDLES, AND ONLY COST ONE SHILLING THE CARD OF THREE

Postage 1-1/2d.

J. H. NICHOLSON, 26-28 Audrey House, Ely Place, Holborn, London, E.C.1.

LISTEN IN!

If you are interested in wireless,or have a wireless set of your own,or want to try a set and are notsure how to start about it, get

RADIO BROADCAST

the Wireless Magazine

1/- MONTHLY

Specimen copy 3d. stamps

The World's Work, 20, Bedford St., W.C.2

Two Books on Radio

RADIO FORAMATEURS

By A. HYATT VERRILL.

Cr. 8vo. 7s. 6d.

With about 200 illustrations and diagrams

An up-to-date, concise, simply written bookcovering every phase of radio communication,with particular attention devoted to radio orwireless telephony.

THE RADIOPATHFINDER

By RICHARD H. RANGER.

Cr. 8vo. 7s. 6d. With numerous illustrations.

The book is written in simple, non-technicallanguage that has the rare quality of beingscientifically accurate yet intriguingly interesting.The illustrations are exceptionally good.

HEINEMANN      LONDON

CONTENTS

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