Page images
[merged small][ocr errors][ocr errors][merged small][ocr errors]
[ocr errors][graphic][subsumed][subsumed][subsumed][subsumed][ocr errors][subsumed][subsumed][subsumed][subsumed][subsumed][ocr errors][subsumed][subsumed]

Electricity Is The Connecting Link

Electricity unites the hemispheres. The wireless telegraph and the transatlantic cable
flashed to both shores the story of the "Lusitania's" voyage. Yesterday men talked across the
ocean by wireless. What will to-morrow bring forth?

Are you keeping abreast of the times? Every new discovery or invention means greater opportunities, greater power, greater chances of advancement for the man who is up-to-date. It will profit you thing simply to use new devices; that is only putting money into another man's pocket. You must understand the application and make it your own if you would get any real benefit from it. Franklin has the honor of discovering electricity, but the man who applied it made the money.


Five Volumes -2,500 pages; page size, 7 x 10 inches; 2,000 illustrations;
bound in 1⁄2 Red Morocco

This work is the connecting link between the man who knows and the man who wants to know. It puts into the hand of the reader the. power and knowledge of the practical electrician. It will post the electrical worker on all the latest developments of his trade, it will teach 'the student the principles of electricity and its newest application. It will tell any man anything he wants to know about electricity, and tell it so simply, so clearly, so concisely that he cannot help understanding.

Special 30 day price, $14.80-less than half

This Cyclopedia is compiled from the regular instruction papers by which the American School of Correspondence has taught hundreds of electricians their whole trade or some higher branch of it. To introduce these courses to you we offer you the books, for thirty days only, at the special price of $14.80. The regular price is $30.00.


We will send you the entire set, express prepaid, for five days' free examination. If you keep them, send $2.00 within 5 days and $2.00 a month until you have paid the special price of $14.80. Otherwise return the books at our expense. We employ no agents. We know that

the books will sell themselves.

Some of the Subjects Treated

Elements of Electricity - The Electric Current - Electrical Measurements - Electric
Wiring - The Electric Telegraph -Wireless Telegraph - The Telautograph-Insulators-
Electric Welding-Direct Current Dynamos-Types of Dynamos-Electric Machinery-
Direct Current Motors-Electric Motors-Storage Batteries-Electric Lighting-Electric
Railways - Management of Dynamo - Power Stations - A Modern Central Station
Design-The Alternator-The Transformer-Switchboard and Station Appliances-
Power Transmission - Mercury Vapor Converter - Telephone Instruments
Telephone Lines-Telephone Exchanges-Common Battery Systems-Telephone
Systems-Automatic Telephone Wireless Telephony - Review Questions.









Please send set Cyclopedia Applied Electricity for 5 days' free examination. I will send 82 within 5 days and 82 a month until 814.80 paid; otherwise I wiil notity you to send for the books.


If the Technical World Magazine is mentioned we guarantee the reliability of our advertis

[blocks in formation]

Your Stationery is Very Closely Related to Your Sales Department

High quality goods should be exploited on high quality stationery.

You cannot use poor or mediocre stationery on which to write your letters asking for business and expect the sales manager to produce large results.


You are constantly striving for ways and means to increase your business. Did you ever sit down and look your letter head in the face to determine whether or not it could be improved? If not, we would suggest that you do it now. A judicious selection of your stationery would very likely mean many dollars added to your profits.

A Free Portfolio of

We would like an opportunity of demonstrating the superiority of our lithographed headings over any other kind. We have prepared a very interesting portfolio of samples that are really worth looking at and which are yours for the asking. This portfolio contains samples of work we have done for Bankers, Manufacturers and Professional Men. What we have done for others we can do for you.


Will You Write Us Today on Your Present Letter Head?

Michigan Lithographing Co. Grand Rapids, Mich.

U. S. A.

If the Technical World Magazine is mentioned we guarantee the reliability of our advertisers.


If the Technical World Magazine is mentioned we guarantee the reliability of our advertisers.


This year, next year and the years thereafter, cleaning houses by our patented machinery, by
energetic, competent men, with a capital of $2,500 and upwards. Over 300 operators in as
many towns in the United States.

We make the most efficient stationary systems for residences, hotels, office buildings, etc.
We own the patents and are prosecuting all infringers. Write for eatalog.
4483, Dept. "C," Olive St.

If the Technical World Magazine is mentioned we guarantee the reliability of our advertisers.

[ocr errors]

Book of styles upon request
REVERSIBLE COLLAR CO., Dept. W. Boston, Mass.

If the Technical Il'orld Magazine is mentioned we guarantee the reliability of our advertisers.

« PreviousContinue »