is given a simple explanation with reference to wiring for direct and alternating currents. The fundamental principle of drop of potential in circuits is shown with its various applications. The simple circuit is developed with the position of mains, feeders and branches; their treatment as a part of a wiring plan and their employment in house wiring clearly illustrated. Some simple facts about testing are included in connection with the wiring. Molding and conduit work are given careful consideration; and switchboards are systematically treated, built up and illustrated, showing the purpose they serve, for connection with the circuits, and to shunt and compound wound machines. The simple principles of switchboard construction, the development of the switchboard, the connections of the various instruments, including the lightning arrester, are also plainly set forth.
Alternating current wiring is treated, with explanations of the power factor, conditions
calling for various sizes of wire, and a simple way of obtaining the sizes for single-phase,
two-phase and three-phase circuits. This is the only complete work issued showing
and telling you what you should know about direct and alternating current wiring.
is a ready reference. The work is free from advanced technicalities and mathematics,
arithmetic being used throughout. It is in every respect a handy, well-written,
instructive, comprehensive volume on wiring for the wireman, foreman, contractor,
or electrician. 272 pages; 105 illustrations. Price
$1.50
ELECTRIC TOY MAKING, DYNAMO BUILDING, AND ELECTRIC MOTOR
CONSTRUCTION. By Prof. T. O'CONOR SLOANE.
This work treats of the making at home of electrical toys, electrical apparatus, motors,
dynamos and instruments in general, and is designed to bring within the reach of
young and old the manufacture of genuine and useful electrical appliances. The work
is especially designed for amateurs and young folks.
Thousands of our young people are daily experimenting, and busily engaged in making
electrical toys and apparatus of various kinds. The present work is just what is want-
ed to give the much needed information in a plain, practical manner, with illustrations
to make easy the carrying out of the work. 20th Edition. Price
$1.00
PRACTICAL ELECTRICITY. By Prof. T. O'CONOR Sloane.
This work of 768 pages was previously known as Sloane's Electricians' Hand Book, and
is intended for the practical electrician who has to make things go. The entire
field of electricity is covered within its pages. Among some of the subjects_treated
are: The Theory of the Electric Current and Circuit, Electro-Chemistry, Primary
Batteries, Storage Batteries, Generation and Utilization of Electric Powers, Alter-
nating Current, Armature Winding, Dynamos and Motors, Motor Generators,
Operation of the Central Station Switchboards, Safety Appliances, Distribution
of Electric Light and Power, Street Mains, Transformers, Arc and Incandescent
Lighting, Electric Measurements, Photometry, Electric Railways, Telephony, Bell-
Wiring, Electric-Plating, Electric Heating, Wireless Telegraphy, etc. It contains no
useless theory; everything is to the point. It teaches you just what you want to
know about electricity. It is the standard work published on the subject. Forty-
one chapters, 556 engravings. Price.
$2.50
ELECTRICITY SIMPLIFIED. By Prof. T. O'CONOR SLOANE.
The object of "Electricity Simplified" is to make the subject as plain as possible and
to show what the modern conception of electricity is; to show how two plates of
different metal, immersed in acid, can send a message around the globe; to explain
how a bundle of copper wire rotated by a steam engine can be the agent in lighting
our streets, to tell what the volt, ohm and ampere are, and what high and low tension
mean; and to answer the questions that perpetually arise in the mind in this age of
electricity. 13th Edition. 172 pages. Illustrated. Price
$1.00
HOUSE WIRING. By THOMAS W. POPPE.
This work describes and illustrates the actual installation of Electric Light Wiring, the manner in which the work should be done, and the method of doing it. The book can be conveniently carried in the pocket. It is intended for the Electrician, Helper and Apprentice. It solves all Wiring Problems and contains nothing that conflicts with the rulings of the National Board of Fire Underwriters. It gives just the information essential to the Successful Wiring of a Building. Among the subjects treated are: Locating the Meter. Panel Boards. Switches. Plug Receptacles. Brackets. Ceiling The Feed Wires. The Steel Armored Cable
Fixtures. The Meter Connections.
System. The Flexible Steel Conduit System. The Ridig Conduit System. A digest of the National Board of Fire Underwriters' rules relating to metallic wiring systems. Various switching arrangements explained and diagrammed. The easiest method of
testing the Three- and Four-way circuits explained. The grounding of all metallic
wiring systems and the reason for doing so shown and explained. The insulation of
the metal parts of lamp fixtures and the reason for the same described and illustrated.
125 pages.
2nd Edition, revised and enlarged. Fully illustrated. Flexible cloth.
Price
50 cents
WHAT IS SAID OF THIS BOOK:
"The information given is exact and exhaustive without being too technical or overladen with details."-Druggists' Circular.
HOW TO BECOME A SUCCESSFUL ELECTRICIAN. By Prof. T. O'CONOR
SLOANE.
Every young man who wishes to become a successful electrician should read this book.
It tells in simple language the surest and easiest way to become a successful electrician.
The studies to be followed, methods of work, field of operation and the requirements
of the successful electrician are pointed out and fully explained. Every young en-
gineer will find this an excellent stepping stone to more advanced works on electricity
which he must master before success can be attained. Many young men become dis-
couraged at the very outstart by attempting to read and study books that are far
beyond their comprehension. This book serves as the connecting link between the
rudiments taught in the public schools and the real study of electricity. It is inter-
esting from cover to cover. Eighteenth Revised 'Edition, just issued.
205 pages.
Illustrated. Price
$1.00
STANDARD ELECTRICAL DICTIONARY. By T. O'CONOR SLOANE.
An indispensable work to all interested in electrical science. Suitable alike for the
student and professional. A practical handbook of reference containing definitions
of about 5,000 distinct words, terms and phrases. The definitions are terse and
concise and include every term used in electrical science. Recently issued. An en-
tirely new edition. Should be in the possession of all who desire to keep abreast with
the progress of this branch of science. In its arrangement and typography the book
is very convenient. The word or term defined is printed in black-faced type which
readily catches the eye, while the body of the page is in smaller but distinct type. The
definitions are well worded, and so as to be understood by the non-technical reader.
The general plan seems to be to give an exact, concise definition, and then amplify
and explain in a more popular way. Synonyms are also given, and references to other
words and phrases are made. A very complete and accurate index of fifty pages is
at the end of the volume; and as this index contains all synonyms, and as all phrases
are indexed in every reasonable combination of words, reference to the proper place
in the body of the book is readily made. It is difficult to decide how far a book of
this character is to keep the dictionary form, and to what extent it may assume the
encyclopedia form. For some purposes, concise, exactly worded definitions are needed;
for other purposes, more extended descriptions are required. This book seeks to satisfy
both demands, and does it with considerable success. Complete, concise and con-
venient. 682 pages.
393 illustrations. Twelfth Edition. Price
$3.00
SWITCHBOARDS. BY WILLIAM BAXTER, JR.
This book appeals to every engineer and electrician who wants to know the practical
side of things. It takes up all sorts and conditions of dynamos, connections and
circuits, and shows by diagram and illustration just how the switchboard should be
connected. Includes direct and alternating current boards, also those for arc lighting,
incandescent and power circuits. Special treatment on high voltage boards for power
transmission. 2d Edition. 190 pages. Illustrated. Price
$1.50
TELEPHONE CONSTRUCTION, INSTALLATION, WIRING, OPERATION
AND MAINTENANCE. By W. H. RADCLIFFE and H. C. CUSHING.
This book is intended for the amateur, the wireman, or the engineer who desires to
establish a means of telephonic communication between the rooms of his home, office,
or shop. It deals only with such things as may be of use to him rather than with
theories.
Gives the principles of construction and operation of both the Bell and Independent instruments; approved methods of installing and wiring them; the means of protecting them from lightning and abnormal currents; their connection together for operation as series or bridging stations; and rules for their inspection and maintenance. Line wiring and the wiring and operation of special telephone systems are also treated. Intricate mathematics are avoided, and all apparatus, circuits and systems are thoroughly described. The appendix contains definitions of units and terms used in the
text. Selected wiring tables, which are very helpful, are also included. Among the
subjects treated are Construction, Operation, and Installation of Telephone Instru-
ments; Inspection and Maintenance of Telephone Instruments; Telephone Line
Wiring; Testing Telephone Line Wires and Cables; Wiring and Operation of Special
Telephone Systems, etc. 2nd Edition, revised and enlarged. 223 pages. 154
illustrations
$1.00
WIRELESS TELEGRAPHY AND TELEPHONY SIMPLY EXPLAINED. By
ALFRED P. MORGAN.
This is undoubtedly one' of the most complete and comprehensible treatises on the
subject ever published, and a close study of its pages will enable one to master all the
details of the wireless transmission of messages. The author has filled a long-felt
want and has succeeded in furnishing a lucid, comprehensible explanation in simple
language of the theory and practice of wireless telegraphy and telephony.
Among the contents are: Introductory; Wireless Transmission and Reception-The
Aerial System, Earth Connections-The Transmitting Apparatus, Spark Coils and
Transformers, Condensers, Helixes, Spark Gaps, Anchor Gaps, Aerial Switches-The
Receiving Apparatus, Detectors, etc.-Tuning and Coupling, Tuning Coils, Loose
Couplers, Variable Condensers, Directive Wave Systems Miscellaneous Apparatus,
Telephone Receivers, Range of Stations, Static Interference-Wireless Telephones,
Sound and Sound Waves, The Vocal Cords and Ear-Wireless Telephone, How Sounds
Are Changed into Electric Waves-Wireless Telephones, The Apparatus-Summary.
154 pages. 156 engravings. Price
WHAT IS SAID OF THIS BOOK:
"This book should be in both the home and school library."-The Youths' Instructor. WIRING A HOUSE.
Shows a house already built; tells just how to start about wiring it; where to begin;
what wire to use; how to run it according to Insurance Rules; in fact, just the informa-
tion you need. Directions apply equally to a shop. Fourth edition
25 cents
MODERN MACHINE SHOP CONSTRUCTION, EQUIPMENT AND MANAGEMENT. By O. E. PERRIGO, M.E.
The only work published that describes the modern machine shop or manufacturing plant from the time the grass is growing on the site intended for it until the finished product is shipped. By a careful study of its thirty-two chapters the practical man may economically build, efficiently equip, and successfully manage the modern machine shop or manufacturing establishment. Just the book needed by those contemplating the erection of modern shop buildings, the rebuilding and reorganization of old ones, or the introduction of modern shop methods, time amd cost systems. It is a book written and illustrated by a practical shop man for practical shop men who are too busy to read theories and want facts. It is the most complete all-around book of its kind ever published. It is a practical book for practical men, from the apprentice in the shop to the president in the office. It minutely describes and illustrates the most simple and yet the most efficient time and cost system yet devised. Price $5.00
COMBUSTION OF COAL AND THE PREVENTION OF SMOKE.
BARR.
This book has been prepared with special reference to the generation of heat by the combustion of the common fuels found in the United States, and deals particularly with the conditions necessary to the economic and smokeless combustion of bituminous coals in Stationary and Locomotive Steam Boilers.
The presentation of this important subject is systematic and progressive. The arrangement of the book is in a series of practical questions to which are appended accurate answers, which describe in language, free from technicalities, the several processes involved in the furnace combustion of American fuels; it clearly states the essential requisites for perfect combustion, and points out the best methods for furnace construction for obtaining the greatest quantity of heat from any given quality of coal. Nearly 350 pages, fully illustrated. Price.
THE GASOLINE ENGINE ON THE FARM: ITS OPERATION, REPAIR AND USES. By XENO W. PUTNAM.
This is a practical treatise on the Gasoline and Kerosene Engine intended for the man
who wants to know just how to manage his engine and how to apply it to all kinds of
farm work to the best advantage.
This book abounds with hints and helps for the farm and suggestions for the home
and housewife. There is so much of value in this book that it is impossible to ade-
quately describe it in such small space. Suffice to say that it is the kind of a book
every farmer will appreciate and every farm home ought to have. Includes selecting
the most suitable engine for farm work, its most convenient and efficient installation,
with chapters on troubles, their remedies, and how to avoid them. The care and
management of the farm tractor in plowing, harrowing, harvesting and road grading
are fully covered; also plain directions are given for handling the tractor on the road.
Special attention is given to relieving farm life of its drudgery by applying power to
the disagreeable small tasks which must otherwise be done by hand. Many home-
made contrivances for cutting wood, supplying kitchen, garden, and barn with water,
loading, hauling and unloading hay, delivering grain to the bins or the feed trough
are included; also full directions for making the engine milk the cows, churn, wash,
sweep the house and clean the windows, etc. Very fully illustrated with drawings of
working parts and cuts showing Stationary, Portable and Tractor Engines doing all
kinds of farm work. All money-making farms utilize power. Learn how to utilize
power by reading the pages of this book. It is an aid to the result getter, invaluable
to the up-to-date farmer, student, blacksmith, implement dealer and, in fact, all who
can apply practical knowledge of stationary gasoline engines or gas tractors to advan-
tage. 530 pages. Nearly 180 engravings. Price.
$2.00
WHAT IS SAID OF THIS BOOK:
"Am much pleased with the book and find it to be very complete and up-to-date. I will heartily recommend it to students and farmers whom I think would stand in need of such a work, as I think it is an exceptionally good one."-N. S. Gardiner, Prof. in Charge, Clemson Agr. College of S. C.; Dept. of Agri. and Agri. Exp. Station, Clemson College, S. C.
"I feel that Mr. Putnam's book covers the main points which a farmer should know." -R. T. Burdick, Instructor in Agronomy, University of Vermont, Burlington, Vt. "It will be a valuable addition to our library upon Farm Machinery."-James A. Farra, Inst. in Agri. Engineering, State University of Ky., Lexington, Ky.
GASOLINE ENGINES: THEIR OPERATION, USE AND CARE. By A. HYATT VERRILL.
The simplest, latest and most comprehensive popular work published on Gasoline
Engines, describing what the Gasoline Engine is; its construction and operation; how
to install it; how to select it; how to use it and how to remedy troubles encountered.
Intended for Owners, Operators and Users of Gasoline Motors of all kinds.
work fully describes and illustrates the various types of Gasoline Engines used in
Motor Boats, Motor Vehicles and Stationary Work. The parts, accessories and
appliances are described, with chapters on ignition, fuel, lubrication, operation and
engine troubles. Special attention is given to the care, operation and repair of motors,
with useful hints and suggestions on emergency repairs and makeshifts. A complete
glossary of technical terms and an alphabetically arranged table of troubles and their
symptoms form most valuable and unique features of this manual. Nearly every
illustration in the book is original, having been made by the author. Every page is
full of interest and value. A book which you cannot afford to be without. 275 pages.
152 specially made engravings. Price .
$1.50
GAS, GASOLINE, AND OIL ENGINES. By GARDNER D. HISCOX.
Just issued, 21st revised and enlarged edition. Every user of a gas engine needs this book. Simple, instructive, and right up-to-date. The only complete work on the subject. Tells all about the running and management of gas, gasoline and oil engines, as designed and manufactured in the United States. Explosive motors for stationary marine and vehicle power are fully treated, together with illustrations of their parts and tabulated sizes, also their care and running are included. Electric ignition by induction coil and jump spark are fully explained and illustrated, including valuable information on the testing for economy and power and the erection of power plants.
The rules and regulations of the Board of Fire Underwriters in regard to the installation
and management of gasoline motors is given in full, suggesting the safe installation
of explosive motor power. A list of United States Patents issued on gas, gasoline, and
oil engines and their adjuncts from 1875 to date is included.
640 pages. 435 engrav-
ings.
GAS ENGINE CONSTRUCTION, OR HOW TO BUILD A HALF-HORSE-
POWER GAS ENGINE. By PARSELL and WEED.
A practical treatise of 300 pages describing the theory and principles of the action of
Gas Engines of various types and the design and construction of a half-horse-powe?
Gas Engine, with illustrations of the work in actual progress, together with the dimen-
sioned working drawings, giving clearly the sizes of the various details; for the student,
the scientific investigator, and the amateur mechanic. This book treats of the subject
more from the standpoint of practice than that of theory. The principles of operation
of Gas Engines are clearly and simply described, and then the actual construction of a
half-horse-power engine is taken up, step by step, showing in detail the making of the
Gas Engine. 3d Edition. 300 pages. Price
$2.50
HOW TO RUN AND INSTALL GASOLINE ENGINES. By C. VON CULIN.
Revised and enlarged edition just issued. The object of this little book is to furnish
a pocket instructor for the beginner, the busy man who uses an engine for pleasure or
profit, but who does not have the time or inclination for a technical book, but simply
to thoroughly understand how to properly operate, install and care for his own engine.
The index refers to each trouble, remedy, and subject alphabetically. Being a quick
reference to find the cause, remedy and prevention for troubles, and to become an
expert with his own engine. Pocket size. Paper binding. Price
25 cents
MODERN GAS ENGINES AND PRODUCER GAS PLANTS. By R. E. MATHOT.
A guide for the gas engine designer, user, and engineer in the construction, selection,
purchase, installation, operation, and maintenance of gas engines. More than one
book on gas engines has been written, but not one has thus far even encroached on the
field covered by this book. Above all Mr. Mathot's work is a practical guide. Recog-
nizing the need of a volume that would assist the gas engine user in understanding
thoroughly the motor upon which he depends for power, the author has discussed his
subject without the help of any mathematics and without elaborate theoretical ex-
planations. Every part of the gas engine is described in detail, tersely, clearly, with
a thorough understanding of the requirements of the mechanic. Helpful suggestions
as to the purchase of an engine, its installation, care, and operation, form a most
valuable feature of the work. 320 pages. 175 detailed illustrations. Price. $2.50
THE MODERN GAS TRACTOR. By VICTOR W. PAGÉ.
A complete treatise describing all types and sizes of gasoline, kerosene and oil tractors. Considers design and construction exhaustively, gives complete instructions for care, operation and repair, outlines all practical applications on the road and in the field. The best and latest work on farm tractors and tractor power plants. A work needed by farmers, students, blacksmiths, mechanics, salesmen, implement dealers, designers and engineers. 500 pages. Nearly 300 illustrations and folding plates. Price $2.00
BEVEL GEAR TABLES. By D. AG. ENGSTROM.
A book that will at once commend itself to mechanics and draftsmen.
with all the trigonometry and fancy figuring on bevel gears, and makes it easy for any-
one to lay them out or make them just right. There are 36 full-page tables that
show every necessary dimension for all sizes or combinations you're apt to need. No
puzzling, figuring or guessing. Gives placing distance, all the angles (including
cutting angles), and the correct cutter to use. A copy of this prepares you for any-
thing in the bevel-gear line. 3d Edition. 66 pages.
$1.00
CHANGE GEAR DEVICES. By OSCAR E. PERRIGO.
A practical book for every designer, draftsman, and mechanic interested in the invention and development of the devices for feed changes on the different machines requiring such mechanism. All the necessary information on this subject is taken up, analyzed, classified, sifted, and concentrated for the use of busy men who have not the time to go through the masses of irrelevant matter with which such a subject is usually encumbered and select such information as will be useful to them.
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