Chapter V: Industrial Application of Storage Batteries; (2)

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 =$1.00=

=Smoke Prevention and Fuel Economy.= By BOOTH and KERSHAW.

A complete treatise for all interested in smoke prevention and
combustion, being based on the German work of Ernst Schmatolla,
but it is more than a mere translation of the German treatise,
much being added. The authors show as briefly as possible the
principles of fuel combustion, the methods which have been and
are at present in use, as well as the proper scientific methods
for obtaining all the energy in the coal and burning it without
smoke. Considerable space is also given to the examination of
the waste gases, and several of the representative English and
American mechanical stoker and similar appliances are described.
The losses carried away in the waste gases are thoroughly
analyzed and discussed in the Appendix, and abstracts are also
here given of various patents on combustion apparatus. The book
is complete and contains much of value to all who have charge of
large plants. 194 pages. Illustrated. Price =$2.50=

~GAS ENGINES AND GAS~

=Gas, Gasoline and Oil Engines.= By GARDNER D. HISCOX. Revised by VICTOR W. PAGE, M.E.

Just issued New 1918 Edition, Revised and Enlarged. 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 internal combustion engineering, treating exhaustively on
the design, construction and practical application of all forms
of gas, gasoline, kerosene and crude petroleum-oil engines.
Describes minutely all auxiliary systems, such as lubrication,
carburetion and ignition. Considers the theory and management of
all forms of explosive motors for stationary and marine work,
automobiles, aeroplanes and motor-cycles. Includes also Producer
Gas and Its Production. Invaluable instructions for all
students, gas-engine owners, gas-engineers, patent experts,
designers, mechanics, draftsmen and all having to do with the
modern power. Illustrated by over 400 engravings, many specially
made from engineering drawings, all in correct proportion. 650
pages, 435 engravings. Price =$2.50 net=

=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 house-wife. There is so much of
value in this book that it is impossible to adequately 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 advantage. 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.

=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. This 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 Engine Construction, or How to Build a Half-horsepower 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-horsepower Gas Engine, with
illustrations of the work in actual progress, together with the
dimensioned 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-horsepower
engine is taken up, step by step, showing in detail the making
of the Gas Engine. 3rd Edition. 300 pages. Price =$2.50=

=How to Run and Install Two- and Four-Cycle Marine 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. Recognizing 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 explanations. 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. PAGE, M. E.

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. 2nd Edition, Revised. 504 pages, 228
illustrations, 3 folding plates. Price =$2.00=

~GEARING AND CAMS~

=Bevel Gear Tables.= By D. AG. ENGSTROM.

A book that will at once commend itself to mechanics and
draftsmen. Does away with all the trigonometry and fancy
figuring on bevel gears, and makes it easy for anyone 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 anything in the bevel-gear line. 3rd Edition.
66 pages. Price =$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.

It shows just what has been done, how it has been done, when it
was done, and who did it. It saves time in hunting up patent
records and re-inventing old ideas. 88 pages. 3rd Edition. Price
=$1.00=

=Drafting of Cams.= By LOUIS ROUILLION.

The laying out of cams is a serious problem unless you know how
to go at it right. This puts you on the right road for
practically any kind of cam you are likely to run up against.
3rd Edition. Price =25 Cents=

~HYDRAULICS~

=Hydraulic Engineering.= By GARDNER D. HISCOX.

A treatise on the properties, power, and resources of water for
all purposes. Including the measurement of streams, the flow of
water in pipes or conduits; the horsepower of falling water,
turbine and impact water-wheels, wave motors, centrifugal,
reciprocating and air-lift pumps. With 300 figures and diagrams
and 36 practical tables. All who are interested in water-works
development will find this book a useful one, because it is an
entirely practical treatise upon a subject of present importance
and cannot fail in having a far-reaching influence, and for this
reason should have a place in the working library of every
engineer. Among the subjects treated are: Historical Hydraulics;
Properties of Water; Measurement of the Flow of Streams; Flow
from Sub-surface Orifices and Nozzles; Flow of Water in Pipes;
Siphons of Various Kinds; Dams and Great Storage Reservoirs;
City and Town Water Supply; Wells and Their Reinforcement;
Air-lift Methods of Raising Water; Artesian Wells; Irrigation of
Arid Districts; Water Power; Water Wheels; Pumps and Pumping
Machinery; Reciprocating Pumps; Hydraulic Power Transmission;
Hydraulic Mining; Canals; Ditches; Conduits and Pipe Lines;
Marine Hydraulics; Tidal and Sea Wave Power, etc. 320 pages.
Price =$4.00=

~ICE AND REFRIGERATION~

=Pocketbook of Refrigeration and Ice Making.= By A. J. WALLIS-TAYLOR.

This is one of the latest and most comprehensive reference books
published on the subject of refrigeration and cold storage. It
explains the properties and refrigerating effect of the
different fluids in use, the management of refrigerating
machinery and the construction and insulation of cold rooms with
their required pipe surface for different degrees of cold;
freezing mixtures and non-freezing brines, temperatures of cold
rooms for all kinds of provisions, cold storage charges for all
classes of goods, ice making and storage of ice, data and
memoranda for constant reference by refrigerating engineers,
with nearly one hundred tables containing valuable references to
every fact and condition required in the installment and
operation of a refrigerating plant. New edition just published.
Price =$1.50=

~INVENTIONS--PATENTS~

=Inventors' Manual: How to Make a Patent Pay.=

This is a book designed as a guide to inventors in perfecting
their inventions, taking out their patents and disposing of
them. It is not in any sense a Patent Solicitor's Circular nor a
Patent Broker's Advertisement. No advertisements of any
description appear in the work. It is a book containing a
quarter of a century's experience of a successful inventor,
together with notes based upon the experience of many other
inventors.

Among the subjects treated in this work are: How to Invent. How
to Secure a Good Patent. Value of Good Invention. How to Exhibit
an Invention. How to Interest Capital. How to Estimate the Value
of a Patent. Value of Design Patents. Value of Foreign Patents.
Value of Small Inventions. Advice on Selling Patents. Advice on
the Formation of Stock Companies. Advice on the Formation of
Limited Liability Companies. Advice on Disposing of Old Patents.
Advice as to Patent Attorneys. Advice as to Selling Agents.
Forms of Assignments. License and Contracts. State Laws
Concerning Patent Rights. 1900 Census of the United States by
Counts of Over 10,000 Population. Revised Edition. 120 pages.
Price =$1.00=

~KNOTS~

=Knots, Splices and Rope Work.= By A. HYATT VERRILL.

This is a practical book giving complete and simple directions
for making all the most useful and ornamental knots in common
use, with chapters on Splicing, Pointing, Seizing, Serving, etc.
This book is fully illustrated with 154 original engravings,
which show how each knot, tie or splice is formed, and its
appearance when finished. The book will be found of the greatest
value to Campers, Yachtsmen, Travelers, Boy Scouts, in fact, to
anyone having occasion to use or handle rope or knots for any
purpose. The book is thoroughly reliable and practical, and is
not only a guide, but a teacher. It is the standard work on the
subject. Among the contents are: 1. Cordage, Kinds of Rope.
Construction of Rope, Parts of Rope Cable and Bolt Rope.
Strength of Rope, Weight of Rope. 2. Simple Knots and Bends.
Terms Used in Handling Rope. Seizing Rope. 3. Ties and Hitches.
4. Noose, Loops and Mooring Knots. 5. Shortenings, Grommets and
Salvages. 6. Lashings, Seizings and Splices. 7. Fancy Knots and
Rope Work. 128 pages, 150 original engravings. 2nd Revised
Edition. Price =75 cents=

~LATHE WORK~

=Lathe Design, Construction, and Operation, with Practical Examples of Lathe Work.= By OSCAR E. PERRIGO.

A new, revised edition, and the only complete American work on
the subject, written by a man who knows not only how work ought
to be done, but who also knows how to do it, and how to convey
this knowledge to others. It is strictly up-to-date in its
descriptions and illustrations. Lathe history and the relations
of the lathe to manufacturing are given; also a description of
the various devices for feeds and thread-cutting mechanisms from
early efforts in this direction to the present time. Lathe
design is thoroughly discussed, including back gearing, driving
cones, thread-cutting gears, and all the essential elements of
the modern lathe. The classification of lathes is taken up,
giving the essential differences of the several types of lathes
including, as is usually understood, engine lathes, bench
lathes, speed lathes, forge lathes, gap lathes, pulley lathes,
forming lathes, multiple-spindle lathes, rapid-reduction lathes,
precision lathes, turret lathes, special lathes, electrically
driven lathes, etc. In addition to the complete exposition on
construction and design, much practical matter on lathe
installation, care and operation has been incorporated in the
enlarged new edition. All kinds of lathe attachments for
drilling, milling, etc., are described and complete instructions
are given to enable the novice machinist to grasp the art of
lathe operation as well as the principles involved in design. A
number of difficult machining operations are described at length
and illustrated. The new edition has nearly 500 pages and 350
illustrations. Price =$2.50=

WHAT IS SAID OF THIS BOOK:

"This is a lathe book from beginning to end, and is just the
kind of a book which one delights to consult--a masterly
treatment of the subject in hand."--_Engineering News._

"This work will be of exceptional interest to any one who is
interested in lathe practice, as one very seldom sees such a
complete treatise on a subject as this is on the
lathe."--_Canadian Machinery._

=Practical Metal Turning.= By JOSEPH G. HORNER.

A work of 404 pages, fully illustrated, covering in a
comprehensive manner the modern practice of machining metal
parts in the lathe, including the regular engine lathe, its
essential design, its uses, its tools, its attachments, and the
manner of holding the work and performing the operations. The
modernized engine lathe, its methods, tools and great range of
accurate work. The turret lathe, its tools, accessories and
methods of performing its functions. Chapters on special work,
grinding, tool holders, speeds, feeds, modern tool steels, etc.
Second edition =$3.50=

=Turning and Boring Tapers.= By FRED H. COLVIN.

There are two ways to turn tapers; the right way and one other.
This treatise has to do with the right way; it tells you how to
start the work properly, how to set the lathe, what tools to use
and how to use them, and forty and one other little things that
you should know. Fourth edition =25 cents=

~LIQUID AIR~

=Liquid Air and the Liquefaction of Gases.= By T. O'CONOR SLOANE.

This book gives the history of the theory, discovery and
manufacture of Liquid Air, and contains an illustrated
description of all the experiments that have excited the wonder
of audiences all over the country. It shows how liquid air, like
water, is carried hundreds of miles and is handled in open
buckets. It tells what may be expected from it in the near
future.

A book that renders simple one of the most perplexing chemical
problems of the century. Startling developments illustrated by
actual experiments.

It is not only a work of scientific interest and authority, but
is intended for the general reader, being written in a popular
style--easily understood by every one. Second edition. 365
pages. Price =$2.00=

~LOCOMOTIVE ENGINEERING~

=Air-Brake Catechism.= By ROBERT H. BLACKALL.

This book is a standard text-book. It covers the Westinghouse
Air-Brake Equipment, including the No. 5 and the No. 6 E.-T.
Locomotive Brake Equipment; the K (Quick Service) Triple Valve
for Freight Service; and the Cross-Compound Pump. The operation
of all parts of the apparatus is explained in detail, and a
practical way of finding their peculiarities and defects, with a
proper remedy, is given. It contains 2,000 questions with their
answers, which will enable any railroad man to pass any
examination on the subject of Air Brakes. Endorsed and used by
air-brake instructors and examiners on nearly every railroad in
the United States. Twenty-sixth edition. 411 pages, fully
illustrated with colored plates and diagrams. Price =$2.00=

=American Compound Locomotives.= By FRED H. COLVIN.

The only book on compounds for the engineman or shopman that
shows in a plain, practical way the various features of compound
locomotives in use. Shows how they are made, what to do when
they break down or balk. Contains sections as follows: A Bit of
History. Theory of Compounding Steam Cylinders. Baldwin
Two-Cylinder Compound. Pittsburg Two-Cylinder Compound. Rhode
Island Compound. Richmond Compound. Rogers Compound. Schenectady
Two-Cylinder Compound. Vauclain Compound. Tandem Compounds.
Baldwin Tandem. The Colvin-Wightman Tandem. Schenectady Tandem.
Balanced Locomotives. Baldwin Balanced Compound. Plans for
Balancing. Locating Blows. Breakdowns. Reducing Valves.
Drifting. Valve Motion. Disconnecting. Power of Compound
Locomotives. Practical Notes.

Fully illustrated and containing ten special "Duotone" inserts
on heavy Plate Paper, showing different types of Compounds. 142
pages. Price =$1.00=

=Application of Highly Superheated Steam to Locomotives.= By ROBERT GARBE.

A practical book which cannot be recommended too highly to those
motive-power men who are anxious to maintain the highest
efficiency in their locomotives. Contains special chapters on
Generation of Highly Superheated Steam; Superheated Steam and
the Two-Cylinder Simple Engine; Compounding and Superheating;
Designs of Locomotive Superheaters; Constructive Details of
Locomotives Using Highly Superheated Steam. Experimental and
Working Results. Illustrated with folding plates and tables.
Cloth. Price =$2.50=

=Combustion of Coal and the Prevention of Smoke.= By WM. M. 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
coal in Stationary and Locomotive Steam Boilers.

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 of furnace
construction for obtaining the greatest quantity of heat from
any given quality of coal. Nearly 350 pages, fully illustrated.
Price =$1.00=

=Diary of a Round-House Foreman.= By T. S. REILLY.

This is the greatest book of railroad experiences ever
published. Containing a fund of information and suggestions
along the line of handling men, organizing, etc., that one
cannot afford to miss. 176 pages. Price =$1.00=

=Link Motions, Valves and Valve Setting.= By FRED H. COLVIN, Associate Editor of "American Machinist."

A handy book for the engineer or machinist that clears up the
mysteries of valve setting. Shows the different valve gears in
use, how they work, and why. Piston and slide valves of
different types are illustrated and explained. A book that every
railroad man in the motive-power department ought to have.
Contains chapters on Locomotive Link Motion, Valve Movements,
Setting Slide Valves, Analysis by Diagrams, Modern Practice,
Slip of Block, Slice Valves, Piston Valves, Setting Piston
Valves, Joy-Allen Valve Gear, Walschaert Valve Gear, Gooch Valve
Gear, Alfree-Hubbell Valve Gear, etc., etc. Fully illustrated.
Price =50 cents=

=Locomotive Boiler Construction.= By FRANK A. KLEINHANS.

The construction of boilers in general is treated and, following
this, the locomotive boiler is taken up in the order in which
its various parts go through the shop. Shows all types of
boilers used; gives details of construction; practical facts,
such as life of riveting, punches and dies; work done per day,
allowance for bending and flanging sheets and other data.
Including the recent Locomotive Boiler Inspection Laws and
Examination Questions with their answers for Government
Inspectors. Contains chapters on Laying-Out Work; Flanging and
Forging; Punching; Shearing; Plate Planing; General Tables;
Finishing Parts; Bending; Machinery Parts; Riveting; Boiler
Details; Smoke-Box Details; Assembling and Calking; Boiler-Shop
Machinery, etc., etc.

There isn't a man who has anything to do with boiler work,
either new or repair work, who doesn't need this book. The
manufacturer, superintendent, foreman and boiler worker--all
need it. No matter what the type of boiler, you'll find a mint
of information that you wouldn't be without. Over 400 pages,
five large folding plates. Price =$3.00=

=Locomotive Breakdowns and their Remedies.= By GEO. L. FOWLER. Revised by WM. W. WOOD, Air-Brake Instructor. Just issued. Revised pocket edition.

It is out of the question to try and tell you about every
subject that is covered in this pocket edition of Locomotive
Breakdowns. Just imagine all the common troubles that an
engineer may expect to happen some time, and then add all of the
unexpected ones, troubles that could occur, but that you have
never thought about, and you will find that they are all treated
with the very best methods of repair. Walschaert Locomotive
Valve Gear Troubles, Electric Headlight Troubles, as well as
Questions and Answers on the Air Brake are all included. 312
pages. 8th Revised Edition. Fully illustrated. Price =$1.00=

=Locomotive Catechism.= By ROBERT GRIMSHAW.

The revised edition of "Locomotive Catechism," by Robert
Grimshaw, is a New Book from Cover to Cover. It contains twice
as many pages and double the number of illustrations of previous
editions. Includes the greatest amount of practical information
ever published on the construction and management of modern
locomotives. Specially Prepared Chapters on the Walschaert
Locomotive Valve Gear, the Air-Brake Equipment and the Electric
Headlight are given.

It commends itself at once to every Engineer and Fireman, and to
all who are going in for examination or promotion. In plain
language, with full, complete answers, not only all the
questions asked by the examining engineer are given, but those
which the young and less experienced would ask the veteran, and
which old hands ask as "stickers." It is a veritable
Encyclopedia of the Locomotive, is entirely free from
mathematics, easily understood and thoroughly up to date.
Contains over 4,000 Examination Questions with their Answers.
825 pages, 437 illustrations, and 3 folding plates. 28th Revised
Edition. Price =$2.50=

=Practical Instructor and Reference Book for Locomotive Firemen and Engineers.= By CHAS. F. LOCKHART.

An entirely new book on the Locomotive. It appeals to every
railroad man, as it tells him how things are done and the right
way to do them. Written by a man who has had years of practical
experience in locomotive shops and on the road firing and
running. The information given in this book cannot be found in
any other similar treatise. Eight hundred and fifty-one
questions with their answers are included, which will prove
specially helpful to those preparing for examination. Practical
information on: The Construction and Operation of Locomotives,
Breakdowns and their Remedies, Air Brakes and Valve Gears. Rules
and Signals are handled in a thorough manner. As a book of
reference it cannot be excelled. The book is divided into six
parts, as follows: 1. The Fireman's Duties. 2. General
Description of the Locomotive. 3. Breakdowns and their Remedies.
4. Air Brakes. 5. Extracts from Standard Rules. 6. Questions for
Examination. The 851 questions have been carefully selected and
arranged. These cover the examinations required by the different
railroads. 368 pages, 88 illustrations. Price =$1.50=

=Prevention of Railroad Accidents, or Safety in Railroading.= By GEORGE BRADSHAW.

This book is a heart-to-heart talk with Railroad Employees,
dealing with facts, not theories, and showing the men in the
ranks, from every-day experience, how accidents occur and how
they may be avoided. The book is illustrated with seventy
original photographs and drawings showing the safe and unsafe
methods of work. No visionary schemes, no ideal pictures. Just
Plain Facts and Practical Suggestions are given. Every railroad
employee who reads the book is a better and safer man to have in
railroad service. It gives just the information which will be
the means of preventing many injuries and deaths. All railroad
employees should procure a copy, read it, and do their part in
preventing accidents. 169 pages. Pocket size. Fully illustrated.
Price =50 cents=

=Train Rule Examinations Made Easy.= By G. E. COLLINGWOOD.

This is the only practical work on train rules in print. Every
detail is covered, and puzzling points are explained in simple,
comprehensive language, making it a practical treatise for the
Train Dispatcher, Engineman, Trainman, and all others who have
to do with the movements of trains. Contains complete and
reliable information of the Standard Code of Train Rules for
single track. Shows Signals in Colors, as used on the different
roads. Explains fully the practical application of train orders,
giving a clear and definite understanding of all orders which
may be used. The meaning and necessity for certain rules are
explained in such a manner that the student may know beyond a
doubt the rights conferred under any orders he may receive or
the action required by certain rules. As nearly all roads
require trainmen to pass regular examinations, a complete set of
examination questions, with their answers, are included. These
will enable the student to pass the required examinations with
credit to himself and the road for which he works. 2nd Edition,
Revised. 256 pages, fully illustrated, with Train Signals in
Colors. Price =$1.25=

=The Walschaert and Other Modern Radial Valve Gears for Locomotives.= By WM. W. WOOD.

If you would thoroughly understand the Walschaert Valve Gear you
should possess a copy of this book, as the author takes the
plainest form of a steam engine--a stationary engine in the
rough, that will only turn its crank in one direction--and from
it builds up, with the reader's help, a modern locomotive
equipped with the Walschaert Valve Gear, complete. The points
discussed are clearly illustrated: Two large folding plates that
show the positions of the valves of both inside or outside
admission type, as well as the links and other parts of the gear
when the crank is at nine different points in its revolution,
are especially valuable in making the movement clear. These
employ sliding cardboard models which are contained in a pocket
in the cover.

The book is divided into five general divisions, as follows: 1.
Analysis of the gear. 2. Designing and erecting the gear. 3.
Advantages of the gear. 4. Questions and answers relating to the
Walschaert Valve Gear. 5. Setting valves with the Walschaert
Valve Gear; the three primary types of locomotive valve motion;
modern radial valve gears other than the Walschaert; the Hobart
All-free Valve and Valve Gear, with questions and answers on
breakdowns; the Baker-Pilliod Valve Gear; the Improved
Baker-Pilliod Valve Gear, with questions and answers on
breakdowns.

The questions with full answers given will be especially
valuable to firemen and engineers in preparing for an
examination for promotion. 245 pages. 3rd Revised Edition. Price
=$1.50=

=Westinghouse E-T Air-Brake Instruction Pocket Book.= By WM. W. WOOD, Air-Brake Instructor.

Here is a book for the railroad man, and the man who aims to be
one. It is without doubt the only complete work published on the
Westinghouse E-T Locomotive Brake Equipment. Written by an
Air-Brake Instructor who knows just what is needed. It covers
the subject thoroughly. Everything about the New Westinghouse
Engine and Tender Brake Equipment, including the standard No. 5
and the Perfected No. 6 style of brake, is treated in detail.
Written in plain English and profusely illustrated with Colored
Plates, which enable one to trace the flow of pressures
throughout the entire equipment. The best book ever published on
the Air Brake. Equally good for the beginner and the advanced
engineer. Will pass any one through any examination. It informs
and enlightens you on every point. Indispensable to every
engineman and trainman.

Contains examination questions and answers on the E-T equipment.
Covering what the E-T Brake is. How it should be operated. What
to do when defective. Not a question can be asked of the
engineman up for promotion, on either the No. 5 or the No. 6 E-T
equipment, that is not asked and answered in the book. If you
want to thoroughly understand the E-T equipment get a copy of
this book. It covers every detail. Makes Air-Brake troubles and
examinations easy. Price =$1.50=

~MACHINE-SHOP PRACTICE~

=American Tool Making and Interchangeable Manufacturing.= By J. V. WOODWORTH.

A "shoppy" book, containing no theorizing, no problematical or
experimental devices. There are no badly proportioned and
impossible diagrams, no catalogue cuts, but a valuable
collection of drawings and descriptions of devices, the rich
fruits of the author's own experience. In its 500-odd pages the
one subject only, Tool Making, and whatever relates thereto, is
dealt with. The work stands without a rival. It is a complete,
practical treatise, on the art of American Tool Making and
system of interchangeable manufacturing as carried on to-day in
the United States. In it are described and illustrated all of
the different types and classes of small tools, fixtures,
devices, and special appliances which are in general use in all
machine-manufacturing and metal-working establishments where
economy, capacity, and interchangeability in the production of
machined metal parts are imperative. The science of jig making
is exhaustively discussed, and particular attention is paid to
drill jigs, boring, profiling and milling fixtures and other
devices in which the parts to be machined are located and
fastened within the contrivances. All of the tools, fixtures,
and devices illustrated and described have been or are used for
the actual production of work, such as parts of drill presses,
lathes, patented machinery, typewriters, electrical apparatus,
mechanical appliances, brass goods, composition parts, mould
products, sheet-metal articles, drop-forgings, jewelry, watches,
medals, coins, etc. 531 pages. Price =$4.00=

=HENLEY'S ENCYCLOPEDIA OF PRACTICAL ENGINEERING AND ALLIED TRADES.= EDITED by JOSEPH G. HORNER, A.M.I., M.E.

This set of five volumes contains about 2,500 pages with
thousands of illustrations, including diagrammatic and sectional
drawings with full explanatory details. This work covers the
entire practice of Civil and Mechanical Engineering. The best
known experts in all branches of engineering have contributed to
these volumes. The Cyclopedia is admirably well adapted to the
needs of the beginner and the self-taught practical man, as well
as the mechanical engineer, designer, draftsman, shop
superintendent, foreman, and machinist. The work will be found a
means of advancement to any progressive man. It is encyclopedic
in scope, thorough and practical in its treatment on technical
subjects, simple and clear in its descriptive matter, and
without unnecessary technicalities or formulae. The articles are
as brief as may be and yet give a reasonably clear and explicit
statement of the subject, and are written by men who have had
ample practical experience in the matters of which they write.
It tells you all you want to know about engineering and tells it
so simply, so clearly, so concisely, that one cannot help but
understand. As a work of reference it is without a peer.
Complete set of five volumes, price =$25.00=

=The Modern Machinist.= By JOHN T. USHER.

This is a book, showing by plain description and by profuse
engravings made expressly for the work, all that is best, most
advanced, and of the highest efficiency in modern machine-shop
practice, tools and implements, showing the way by which and
through which, as Mr. Maxim says "American machinists have
become and are the finest mechanics in the world." Indicating as
it does, in every line, the familiarity of the author with every
detail of daily experience in the shop, it cannot fail to be of
service to any man practically connected with the shaping or
finishing of metals.

There is nothing experimental or visionary about the book, all
devices being in actual use and giving good results. It might be
called a compendium of shop methods, showing a variety of
special tools and appliances which will give new ideas to many
mechanics, from the superintendent down to the man at the bench.
It will be found a valuable addition to any machinist's library,
and should be consulted whenever a new or difficult job is to be
done, whether it is boring, milling, turning, or planing, as
they are all treated m a practical manner. Fifth edition. 320
pages. 250 illustrations. Price =$2.50=

=THE WHOLE FIELD OF MECHANICAL MOVEMENTS COVERED BY MR. HISCOX'S TWO BOOKS=

_We publish two books by Gardner D. Hiscox that will keep you
from "inventing" things that have been done before, and suggest
ways of doing things that you have not thought of before. Many a
man spends time and money pondering over some mechanical
problem, only to learn, after he has solved the problem, that
the same thing has been accomplished and put in practice by
others long before. Time and money spent in an effort to
accomplish what has already been accomplished are time and money
LOST. The whole field of mechanics, every known mechanical
movement, and practically every device are covered by these two
books. If the thing you want has been invented, it is
illustrated in them. If it hasn't been invented, then you'll
find in them the nearest things to what you want, some movements
or devices that will apply in your case, perhaps; or which will
give you a key from which to work. No book or set of books ever
published is of more real value to the Inventor, Draftsman, or
practical Mechanic than the two volumes described below._

=Mechanical Movements, Powers, and Devices.= By GARDNER D. HISCOX.

This is a collection of 1,890 engravings of different mechanical
motions and appliances, accompanied by appropriate text, making
it a book of great value to the inventor, the draftsman, and to
all readers with mechanical tastes. The book is divided into
eighteen sections or chapters, in which the subject-matter is
classified under the following heads: Mechanical Powers;
Transmission of Power; Measurement of Power; Steam Power; Air
Power Appliances; Electric Power and Construction; Navigation
and Roads; Gearing; Motion and Devices; Controlling Motion;
Horological; Mining; Mill and Factory Appliances; Construction
and Devices; Drafting Devices; Miscellaneous Devices, etc. 15th
Edition. 400 octavo pages. Price =$3.00=

=Mechanical Appliances, Mechanical Movements and Novelties of Construction.= By GARDNER D. HISCOX.

This is a supplementary volume to the one upon mechanical
movements. Unlike the first volume, which is more elementary in
character, this volume contains illustrations and descriptions
of many combinations of motions and of mechanical devices and
appliances found in different lines of machinery, each device
being shown by a line drawing with a description showing its
working parts and the method of operation. From the multitude of
devices described and illustrated might be mentioned, in
passing, such items as conveyors and elevators, Pony brakes,
thermometers, various types of boilers, solar engines, oil-fuel
burners, condensers, evaporators, Corliss and other valve gears,
governors, gas engines, water motors of various descriptions,
air ships, motors and dynamos, automobile and motor bicycles,
railway lock signals, car couplers, link and gear motions, ball
bearings, breech-block mechanism for heavy guns, and a large
accumulation of others of equal importance. One thousand
specially made engravings. 396 octavo pages. Fourth edition.
Price =$3.00=

=Machine-Shop Tools and Shop Practice.= By W. H. VANDERVOORT.

A work of 555 pages and 673 illustrations, describing in every
detail the construction, operation and manipulation of both hand
and machine tools. Includes chapters on filing, fitting and
scraping surfaces; on drills, reamers, taps and dies; the lathe
and its tools: planers, shapers, and their tools; milling
machines and cutters; gear cutters and gear cutting; drilling
machines and drill work; grinding machines and their work;
hardening and tempering; gearing, belting and transmission
machinery; useful data and tables. Sixth edition. Price =$3.00=

=Machine-Shop Arithmetic.= By COLVIN-CHENEY.

This is an arithmetic of the things you have to do with daily.
It tells you plainly about: how to find areas in figures; how to
find surface or volume of balls or spheres; handy ways for
calculating; about compound gearing; cutting screw threads on
any lathe; drilling for taps; speeds of drills; taps, emery
wheels, grindstones, milling cutters, etc.; all about the Metric
system with conversion tables; properties of metals; strength of
bolts and nuts; decimal equivalent of an inch. All sorts of
machine-shop figuring and 1,001 other things, any one of which
ought to be worth more than the price of this book to you, as it
saves you the trouble of bothering the boss. 6th Edition. 131
pages. Price =50 cents=

=Modern Machine-Shop Construction, Equipment and Management.= By OSCAR E. PERRIGO.

The only work published that describes the Modern Shop or
Manufacturing Plant from the time the grass is growing on the
site intended for it until the finished product is shipped. 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 and 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-round book
of its kind ever published. Second Edition, Revised. 384 large
quarto pages. 219 original and specially made illustrations. 2nd
Revised and Enlarged Edition. Price =$5.00=

=Modern Milling Machines: Their Design, Construction, and Operation.= By JOSEPH G. HORNER.

This book describes and illustrates the Milling Machine and its
work in such a plain, clear and forceful manner, and illustrates
the subject so clearly and completely, that the up-to-date
machinist, student or mechanical engineer cannot afford to do
without the valuable information which it contains. It describes
not only the early machines of this class, but notes their
gradual development into the splendid machines of the present
day, giving the design and construction of the various types,
forms, and special features produced by prominent manufacturers,
American and foreign. 304 pages, 300 illustrations. Cloth. Price
=$4.00=

="Shop Kinks."= By ROBERT GRIMSHAW.

A book of 400 pages and 222 illustrations, being entirely
different from any other book on machine-shop practice.
Departing from conventional style, the author avoids universal
or common shop usage and limits his work to showing special ways
of doing things better, more cheaply and more rapidly than
usual. As a result the advanced methods of representative
establishments of the world are placed at the disposal of the
reader. This book shows the proprietor where large savings are
possible, and how products may be improved. To the employee it
holds out suggestions that, properly applied, will hasten his
advancement. No shop can afford to be without it. It bristles
with valuable wrinkles and helpful suggestions. It will benefit
all, from apprentice to proprietor. Every machinist, at any age,
should study its pages. Fifth edition. Price =$2.50=

=Threads and Thread Cutting.= By COLVIN and STABEL.

This clears up many of the mysteries of thread-cutting, such as
double and triple threads, internal threads, catching threads,
use of hobs, etc. Contains a lot of useful hints and several
tables. Third edition. Price =25 cents=

~MANUAL TRAINING~

=Economics of Manual Training.= By LOUIS ROUILLION.

The only book published that gives just the information needed
by all interested in Manual Training, regarding Buildings,
Equipment, and Supplies. Shows exactly what is needed for all
grades of the work from the Kindergarten to the High and Normal
School. Gives itemized lists of everything used in Manual
Training Work and tells just what it ought to cost. Also shows
where to buy supplies, etc. Contains 174 pages, and is fully
illustrated. Second edition. Price =$1.50=

~MARINE ENGINEERING~

=The Naval Architect's and Shipbuilder's Pocket Book of Formulae, Rules, and Tables and Marine Engineer's and Surveyor's Handy Book of Reference.= By CLEMENT MACKROW and LLOYD WOOLLARD.

The eleventh Revised and Enlarged Edition of this most
comprehensive work has just been issued. It is absolutely
indispensable to all engaged in the Shipbuilding Industry, as it
condenses into a compact form all data and formulae that are
ordinarily required. The book is completely up to date,
including among other subjects a section on Aeronautics. 750
pages, limp leather binding. Price =$5.00 net=

=Marine Engines and Boilers: Their Design and Construction.= By DR. G. BAUER, LESLIE S. ROBERTSON and S. BRYAN DONKIN.

In the words of Dr. Bauer, the present work owes its origin to
an oft felt want of a condensed treatise embodying the
theoretical and practical rules used in designing marine engines
and boilers. The need of such a work has been felt by most
engineers engaged in the construction and working of marine
engines, not only by the younger men, but also by those of
greater experience. The fact that the original German work was
written by the chief engineer of the famous Vulcan Works,
Stettin, is in itself a guarantee that this book is in all
respects thoroughly up-to-date, and that it embodies all the
information which is necessary for the design and construction
of the highest types of marine engines and boilers. It may be
said that the motive power which Dr. Bauer has placed in the
fast German liners that have been turned out of late years from
the Stettin Works represent the very best practice in marine
engineering of the present day. The work is clearly written,
thoroughly systematic, theoretically sound; while the character
of the plans, drawings, tables, and statistics is without
reproach. The illustrations are careful reproductions from
actual working drawings, with some well-executed photographic
views of completed engines and boilers. 744 pages, 550
illustrations and numerous tables. Cloth. Price =$9.00 net=

~MINING~

=Ore Deposits, with a Chapter on Hints to Prospectors.= By J. P. JOHNSON.

This book gives a condensed account of the ore deposits at
present known in South Africa. It is also intended as a guide to
the prospector. Only an elementary knowledge of geology and some
mining experience are necessary in order to understand this
work. With these qualifications, it will materially assist one
in his search for metalliferous mineral occurrences and, so far
as simple ores are concerned, should enable one to form some
idea of the possibilities of any he may find. Illustrated.
Cloth. Price =$2.00=

=Practical Coal Mining.= By T. H. COCKIN.

An important work, containing 428 pages and 213 illustrations,
complete with practical details, which will intuitively impart
to the reader not only a general knowledge of the principles of
coal mining, but also considerable insight into allied subjects.
The treatise is positively up-to-date in every instance, and
should be in the hands of every colliery engineer, geologist,
mine operator, superintendent, foreman, and all others who are
interested in or connected with the industry. 3d Edition. Cloth.
Price =$2.50=

=Physics and Chemistry of Mining.= By T. H. BYROM.

A practical work for the use of all preparing for examinations
in mining or qualifying for colliery managers' certificates. The
aim of the author in this excellent book is to place clearly
before the reader useful and authoritative data which will
render him valuable assistance in his studies. The only work of
its kind published. The information incorporated in it will
prove of the greatest practical utility to students, mining
engineers, colliery managers, and all others who are specially
interested in the present-day treatment of mining problems. 160
pages, illustrated. Price =$2.00=

~PATTERN MAKING~

=Practical Pattern Making.= By F. W. BARROWS.

This book, now in its second edition, is a comprehensive and
entirely practical treatise on the subject of pattern making,
illustrating pattern work in both wood and metal, and with
definite instructions on the use of plaster of paris in the
trade. It gives specific and detailed descriptions of the
materials used by pattern makers, and describes the tools, both
those for the bench and the more interesting machine tools,
having complete chapters on the Lathe, the Circular Saw, and the
Band Saw. It gives many examples of pattern work, each one fully
illustrated and explained with much detail. These examples, in
their great variety, offer much that will be found of interest
to all pattern makers, and especially to the younger ones, who
are seeking information on the more advanced branches of their
trade.

In this second edition of the work will be found much that is
new, even to those who have long practised this exacting trade.
In the description of patterns as adapted to the Moulding
Machine many difficulties which have long prevented the rapid
and economical production of castings are overcome; and this
great, new branch of the trade is given much space. Stripping
plate and stool plate work and the less expensive vibrator, or
rapping plate work, are all explained in detail.

Plain, every-day rules for lessening the cost of patterns, with
a complete system of cost keeping, a detailed method of marking,
applicable to all branches of the trade, with complete
information showing what the pattern is, its specific title, its
cost, date of production, material of which it is made, the
number of pieces and core-boxes, and its location in the pattern
safe, all condensed into a most complete card record, with cross
index. The book closes with an original and practical method for
the inventory and valuation of patterns. Containing nearly 350
pages and 170 illustrations. Price =$2.00=

~PERFUMERY~

=Perfumes and Cosmetics: Their Preparation and Manufacture.= By G. W. ASKINSON, Perfumer.

A comprehensive treatise, in which there has been nothing
omitted that could be of value to the perfumer or manufacturer
of toilet preparations. Complete directions for making
handkerchief perfumes, smelling-salts, sachets, fumigating
pastilles; preparations for the care of the skin, the mouth, the
hair, cosmetics, hair dyes and other toilet articles are given,
also a detailed description of aromatic substances; their
nature, tests of purity, and wholesome manufacture, including a
chapter on synthetic products, with formulas for their use. A
book of general as well as professional interest, meeting the
wants not only of the druggist and perfume manufacturer, but
also of the general public. Among the contents are: 1. The
History of Perfumery. 2. About Aromatic Substances in General.
3. Odors from the Vegetable Kingdom. 4. The Aromatic Vegetable
Substances Employed in Perfumery. 5. The Animal Substances Used
in Perfumery. 6. The Chemical Products Used in Perfumery. 7. The
Extraction of Odors. 8. The Special Characteristics of Aromatic
Substances. 9 The Adulteration of Essential Oils and Their
Recognition. 10. Synthetic Products. 11. Table of Physical
Properties of Aromatic Chemicals. 12. The Essences or Extracts
Employed in Perfumery. 13. Directions for Making the Most
Important Essences and Extracts. 14. The Division of Perfumery.
15. The Manufacture of Handkerchief Perfumes. 16. Formulas for
Handkerchief Perfumes. 17. Ammoniacal and Acid Perfumes. 18. Dry
Perfumes. 19. Formulas for Dry Perfumes. 20. The Perfumes Used
for Fumigation. 21. Antiseptic and Therapeutic Value of
Perfumes. 22. Classification of Odors. 23. Some Special
Perfumery Products. 24. Hygiene and Cosmetic Perfumery. 25.
Preparations for the Care of the Skin. 26. Manufacture of
Casein. 27. Formulas for Emulsions. 28. Formulas for Cream. 29.
Formulas for Meals, Pastes and Vegetable Milk. 30. Preparations
Used for the Hair. 31. Formulas for Hair Tonics and Restorers.
32. Pomades and Hair Oils 33. Formulas for the Manufacture of
Pomades and Hair Oils. 34. Hair Dyes and Depilatories. 35. Wax
Pomades, Bandolines and Brilliantines. 36. Skin Cosmetics and
Face Lotions. 37. Preparations for the Nails. 38. Water
Softeners and Bath Salts. 39. Preparations for the Care of the
Mouth. 40. The Colors Used in Perfumery. 41. The Utensils Used
in the Toilet. Fourth edition, much enlarged and brought up to
date. Nearly 400 pages, illustrated. Price =$5.00=

WHAT IS SAID OF THIS BOOK:

"The most satisfactory work on the subject of Perfumery that we
have ever seen."

"We feel safe in saying that here is a book on Perfumery that
will not disappoint you, for it has practical and excellent
formulae that are within your ability to prepare readily."

"We recommend the volume as worthy of confidence, and say that
no purchaser will be disappointed in securing from its pages
good value for its cost, and a large dividend on the same, even
if he should use but one per cent. of its working formulae. There
is money in it for every user of its
information."--_Pharmaceutical Record._

~PLUMBING~

=Mechanical Drawing for Plumbers.= By R. M. STARBUCK.

A concise, comprehensive and practical treatise on the subject
of mechanical drawing in its various modern applications to the
work of all who are in any way connected with the plumbing
trade. Nothing will so help the plumber in estimating and in
explaining work to customers and workmen as a knowledge of
drawing, and to the workman it is of inestimable value if he is
to rise above his position to positions of greater
responsibility. Among the chapters contained are: 1. Value to
plumber of knowledge of drawing; tools required and their use;
common views needed in mechanical drawing. 2. Perspective versus
mechanical drawing in showing plumbing construction. 3. Correct
and incorrect methods in plumbing drawing; plan and elevation
explained. 4. Floor and cellar plans and elevation; scale
drawings; use of triangles. 5. Use of triangles; drawing of
fittings, traps, etc. 6. Drawing plumbing elevations and
fittings. 7. Instructions in drawing plumbing elevations. 8. The
drawing of plumbing fixtures; scale drawings. 9. Drawings of
fixtures and fittings. 10. Inking of drawings. 11. Shading of
drawings. 12. Shading of drawings. 13. Sectional drawings;
drawing of threads. 14. Plumbing elevations from architect's
plan. 15. Elevations of separate parts of the plumbing system.
16. Elevations from the architect's plans. 17. Drawings of
detail plumbing connections. 18. Architect's plans and plumbing
elevations of residence. 19. Plumbing elevations of residence
(_continued_); plumbing plans for cottage. 20. Plumbing
elevations; roof connections. 21. Plans and plumbing elevations
for six-flat building. 22. Drawing of various parts of the
plumbing system; use of scales. 23. Use of architect's scales.
24. Special features in the illustrations of country plumbing.
25. Drawing of wrought-iron piping, valves, radiators, coils,
etc. 26. Drawing of piping to illustrate heating systems. 150
illustrations. Price =$1.50=

=Modern Plumbing Illustrated.= By R. M. STARBUCK.

This book represents the highest standard of plumbing work. It
has been adopted and used as a reference book by the United
States Government in its sanitary work in Cuba, Porto Rico and
the Philippines, and by the principal Boards of Health of the
United States and Canada.