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Fig. 150.

'quite thoroughly, and therefore be of special value.

We might say that in perspective, the lines that run back, and away from the observer, appear to converge instead of appearing parallel, as they actually are.

This is illustrated by a straight line of railway tracks. We all know that if we look along a long stretch of track, the rails appear to converge, and if the distance is great enough, they seem finally to run together.

To be actually correct in showing the work of Fig. 151, the lines of pipe A-B and K-L, instead of being parallel, should be somewhat closer together from B to K than from A to L, but in mechanical perspective, as we may call the work that we are now considering, this principle is

not usually given any consideration.

Very often on such work as shown in Fig. 151 the work as far as we have carried it, is shown in perspective, while the radiators, and all other work above the connections in the cellar, the work would show plain, just as we have hitherto shown it.

In bringing this book to a close with the present chapter we would say that we have endeavored to eliminate as far as possible all technical matters connected with the subject, trying as far as possible to express and explain the ideas to be conveyed in as straightforward and plain wording as possible, for it has been our aim to make the book equally as valuable to the apprentice boy as to the well informed master.

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EACH BOOK IN THIS CATALOGUE IS WRITTEN
BY AN EXPERT AND IS WRITTEN SO

YOU CAN UNDERSTAND IT

PUBLISHED BY

THE NORMAN W. HENLEY PUBLISHING CO.

Publishers of Scientific and Practical Books
132 NASSAU STREET, NEW YORK, U. S. A.

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Any Book in this Catalogue sent prepaid on receipt of price

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SUBJECT INDEX

.. 23

......... 5
......... 17

.... 19

.........

7

......

9

26

. 26

PAGE

PAGE
Accidents ............................ 20

Marine Engines........
Air Brakes.
........................19, 21 Marine Steam Turbines.

.......... 30
Arithmetics.....................11, 22, 28 Mechanical Movements..
Automobiles ......................3, 4, 5 Metal Turning ........
Balloons...............

Milling Machines...

.........
Bevel Gears.....................

Mining .................
Boilers...............

Oil Engines..............

... 15
Brazing.............

..... 6 Patents.............. ............. 17
Cams........

Patternmaking ........

.......... 24
Change Gears...
.... 17 Perfumery ........

24
Charts..

Pipes........

.. 28
Chemistry......
26 Plumbing .....

... 25
Coal Mining......

....... 24
Producer Gas.........

... 15
Coke................................ 7 Punches............................. 10
Compressed Air......

Railroad Accidents.......

... 20
Concrete..........................7, 8, 9 | Recipe Book.......................26,
Cyclopedia.........................7, 21 Refrigeration ......

..............

.. 17
Dictionaries..............

Rope Work......

.. 18
Dies ..............

..........9, 10 Rubber Stamps..........
Drawing.......

.........10, 25 Saws.............................
Drop Forging ......
......... 10 Sheet Metal Working.....

. 10
Dynamo......

12, 13 Shop Tools .............
Electricity .........

....11, 12, 13, 14 Shop Construction.....
Engines and Boilers..
vers................... 23 Shop Management...

... 22
Factory Management.

......... 14
Sketching Paper .....

.... 11
Flying Machines........

Smoke Prevention......

..... 14
Fuel......

............. 14
14 Soldering ................

......
Gas Engines....

.....14, 15, 16 Splices........................

...........30, 31 Steam Engineering .................27,
Gears..............

... 17 Steam Heating .......................
Heating, Electric...

11 Steam Pipes..................
Hot Water Heating...

Steel ..........

.......28, 29, 30
Horse-Power Chart....

Superheated Steam... .............
Hydraulics.......

Switchboards....... ............11, 13
Ice Making.......

Tapers..........

......... 18
India Rubber ........

Telephone.....
Interchangeable Manufacturing.

21 Threads.....
Inventions.

Tools.
Knots. ......

18 Tractor, Gas.....
Lathe Work.
..... 18 Turbines.........

............ 30
Lighting (Electric)........

Ventilation..............

.............. 11
Link Motion.

Valve Gear .......................... 20
Liquid Air...............

Valve Setting ........................
Locomotive Boilers....

Walschaert Valve Gear................
Locomotive Engineering.

Watchmaking ........... ..........
Machinists' Books.......

23 Wiring ....................11, 12, 13, 14
Manual Training ..... ........... 23 | Wireless Telephones and Telegraphy..... 13

::::

5

Gas Tracto

28

28

17

17

...........

26

88:::::::::::::::

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21

TE ANY OF THESE BOOKS PROMPTLY SENT PREPAID TO ANY ADDRESS

IN THE WORLD ON RECEIPT OF PRICE.

HOW TO REMIT.—By Postal Money Order, Express Money Order, Bank

Draft or Registered Letter.

Just Published! 1914 Revised Edition! 150 Pages of New Matter and

Engravings Added. Contains Up-to-the-minute Information.

The MODERN GASOLINE

AUTOMOBILE

115. CONSTRUC: OPERA
MAINTENANCE

Its Construction, Operation, Maintenance

and Repair. By VICTOR W. PAGÉ, M. E. 575 Illustrations-Over 850 Pages-Eleven Large Folding

Plates

PRICE $2.50 A COMPLETE AUTOMOBILE BOOK, SHOWING EVERY RECENT IMPROVEMENT

By a careful study of the pages of this book one can gain practical knowledge of the automobile that will save time, money, and worry. The book tells you just what to do, how and when to do it. Nothing has been omitted, no detail has been slighted. Every part of the automobile, its equipment, accessories, tools, supplies, spare parts necessary, etc., have been discussed comprehensively. If you are or intend to become a motorist, or are in any way interested in the modern Gasoline Automobile, this is a book you cannot afford to be without. COVERS EVERY PHASE OF UP-TO-DATE AUTOMOBILE PRACTICE AND

IS SUPERIOR TO ANY TREATISE HERETOFORE PUBLISHED Written in simple language by a recognized authority, familiar with every branch of the automobile industry. Free from technical terms. Everything is explained so simply that anyone of average intelligence may gain a comprehensive knowledge of the gasoline automobile. The information is up to date and includes, in addition to an exposition of principles of construction and description of all types of automobiles and their parts, valuable money-saving hints on the care and operation of motor cars propelled by internal combustion engines.

Motorists, students, salesmen, demonstrators, repairmen, chauffeurs, garage owners, and even designers or engineers need this work because it is complete, authoritative and thoroughly up-to-date. Other works dealing with automobile construction published in the past make no reference to modern improvements because of their recent development. All are fully discussed and illustrated in this volume.

CONTAINS SPECIAL CHAPTERS ON · I. Types of Modern Automobiles. II. How Power is Generated. III. Prineipal Parts of Gasoline Engines. Their Design, Construetion, and Application. IV. Constructional Details of Pistons. V. Liquid Fuels Used and Methods of Vaporizing to Obtain Explosive Gas. VI. Automobile Power Plant Ignition Systems Outlined. VII. Reasons for Lubrication of Mechanism. VIII. Utility of Clutehes and Gearsets. IX. The Chassis and Its Parts. X. Wheels, Rims, and Tires. XI. Motor Car Equipment and Aeeessories. XII. Operating Advice and Explanation of Automobile Control Methods. XIII. Hints to Assist in Locating Power-Plant Troubles. XIV. Keeping Up the Motor-Car Chassis.

WHAT IS SAID OF THIS BOOK: "It is the best book on the Automobile seen up to date.”—J. H. Pile, Associate Editor, Automootte Trade Journal.

“Every Automobile Owner has use for a book of this character.”—The Tradesman. “This book is superior to any treatise heretofore published on the subject.”—The Inventive Age.

“We know of no other volume that is so eomplete in all its departments, and in which the wide field of automobile construction with its mechanical intricacies is so plainly handled, both in the text and in the matter of illustrations.”—The Motorist.

“The book is very thorough, a careful examination failing to disclose any point in connection witha the automobile, its eare and repair, to have been overlooked."-Iron Age.

"Mr. Pagé has done a great work, and benefit to the Automobile field.”_W.C. Hasford, Mgr. Y. M. C. A. Automobile School, Boston, Mass.

"It is just the kind of a book a motorist needs if he wants to understand his car."-American Thresh erman.

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