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This World Atlas Free

This Modern Atlas of the World sells regularly for $5.00. It contains more than 100 maps in colors. There is a map of each state, territory and country. It gives the population of all cities of importance. This invaluable Atlas is bound in red cloth and is 10 x 13 inches in size. We will send it to you, absolutely free, if you mail us your order promptly for a set of the New American Encyclopedic Dictionary. This great reference work-which is an Encyclopedia and Dictionary combined-is a set of books you need daily in your home and office because it is the

Newest and Best Reference Work

The New American Encyclopedic Dictionary is up-to-date in every particular; this revised edition was printed this year. It is absolutely reliable. As a dictionary it defines 25,000 more words than any other dictionary. As an encyclopedia it treats 50,000 subjects-and this vast array of articles covers the whole field of human knowledge. It should be the corner-stone of your library, for no matter how small or large your collection of books may be, or what your trade or occupation is, you will need this invaluable reference work every day.

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The Greatest Dictionary
Bargain Ever Offered

Hon. John W. Goff, Recorder of New York, says: "To the student and man of busy life, the advantage of finding, embraced in one work, the best features of an Encyclopedia and Dictionary is incalculable."

5 Big Volumes

each one foot tall.

5,000 Large Pages

Thousands of pictures.

250,000 Words

every one accurately defined.

50,000 Articles

embracing all subjects.

The Price is One-Third

the price of any other reference work. One dollar after examination and $1.50 a month for a few months is all it will cost you to get the New American Encyclopedic Dictionary, if you are in time to secure a set of the introductory edition. There are less than 200 sets remaining.

Sets in Library Binding

The volumes are bound in handsome half-leather binding, durable as well as attractive. They are an ornament to any book-shelf. In addition to reducing the price of the Dictionary from $56.00 to $20.50-payable in easy monthly payments-we give you the Atlas without charge. This low-priced offer is limited to this special edition, now almost closed out. Order to-day before it is too late.

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T.W. 9-06.

J.A.HILL & CO.
New York:

Send me for examination, express charges prepaid, a set of the New

American Encylopedie Dietionary in half-leather binding (regular price $56.00). If satisfactory I agree to pay 81.00 in 7 days and 81.50 a month until your special price of 820.50 is paid. It is understood that I am to get a 85.00 Atlas free with the set. If not satisfied I will return both in 7 days at your expense.

Name.

Mention Technical World Magazine

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FACTS

FROM MANY LANDS

ITALIAN railroad authorities are experimenting with a device for use at railroad stations, by means of which all tickets are printed and stamped with their price in the presence of the passenger, a record of each sale being, at the same time made on a roll of paper inside the

machine. Each machine is equipped for printing tickets to more than 400 stations.

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THE production of aluminum in the

United States has increased ten-fold in as many years. In 1883 the total production was 83 pounds. In 1904 it was 8,600,000 pounds.

A LIGHTHOUSE that has neither lamp nor keeper is located at Arnish Rock, Stornoway Bay, in the Hebrides, Scotland. It is a conical beacon with a lantern, which has a mirror and an arrangement of prisms at its summit. Across the channel, 500 feet away, on Lewis Island, stands a lighthouse which throws a stream of light on the mirror in the lantern, which in turn reflects it on the prisms. The rays of light are converged to a focus outside the lantern and then diverge in every direction, making a serviceable lighthouse, fully adapted to the requirements of its locality.

THE money value of the Vatican, the

Pope's palace at Rome, and its treasures is estimated at $150,000,000.

AT New Haven, Conn., Yale Univer

sity is building a reinforced-concrete. stadium, which will have a seating capacity of 40,000.

NEWSPAPER dispatches from Den

ver announce that it has been decided to adopt electricity as the motive power on the Denver & Rio Grande railroad, the electricity to be generated by mountain streams along the line. It is added that electric engineers report enough water power going to waste within the state to run all the railroads inside its borders.

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Sensible, Serviceable, Satisfactory No other underwear combines so many good qualities and is so moderate in cost. Á daily production of 10,000 garments is insufficient to supply the demand. Whether considered from the standpoint of health, comfort, durability, appearance or price, the Munsing Underwear merits your patronage. A trial order will convince you. Send six cents in stamps for illustrated style book, samples of fabric and Doll's Dainty Pink or Blue Undervests.

One vest for three two cent stamps.
Two vests for five two cent stamps.

The Northwestern Knitting Co. 203 Lyndale Ave. No., Minneapolis, Minnesota. The best equipped knitting mill in the United States.

The Way to be a Thinker

is to get in touch with thinkers. All the world's prizes are captured by those who have seasoned their energy with the spice of originality-and originality means the habit of clear and fresh thinking. Even the best of us have a tendency to fall into mental ruts, to go plodding on, year after year, in the same track, to do things without knowing precisely why. The way to keep alive, the way to be original, the way to be a success, is to talk with brainy people and to read books that make you think. That's the reason

The New Science Library

is a cure for mental paralysis. It contains the best work of Darwin, Huxley, Spencer. Tyndall and great leaders of modern thought. It will tell you what the famous Darwinian theory is; how the planets are weighed and their motions charted; what radium is; how liquid air is made and usedand ten thousand other interesting things. It is a work to be read and enjoyed, for it is written in a clear and interesting style-not abstruse or technical. The work consists of sixteen superb volumes, handsomely printed and bound.

FREE-84-Page Book-FREE

If you will mail us the coupon below at once, we will send full information of the New Science Library, and how you may get it at half price and on the Individual Payment Plan, by means of which you can arrange the payments to suit yourself. At the same time we will send you a copy of our handsome 84-page book, "Some Wonders of Science." This book, containing articles by Huxley, Tylor, Proctor and Ray Stannard Baker, is so bright and interesting that you will read it from cover to cover, and when you have read it you will wonder how you ever could have thought science dry and dull. There is an edition of a thousand copies. Each copy is beautifully illustrated and printed. As long as the edition lasts, we will exchange a copy of it for the coupon printed at the bottom of this advertisement.

American Newspaper Association

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Mention Technical World Magazine

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