TRAIN RULES AND DESPATCHING.

By H. A. DALBY.

Every railroad man, no matter what department he's in, needs a copy of this book. It gives the standard rules for both single and double track, shows all the signals, with colors wherever necessary, and has a list of towns where time changes, with a map showing the whole country. The rules are explained wherever there is any doubt about their meaning or where they are modified by different railroads. It's the only practical book on train rules in print. Over 220 pages. Leather cover. Price

WALSCHAERT LOCOMOTIVE VALVE GEAR. By Wм. W. WOOD.

.. $1.50

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 four general divisions, as follows: I. Analysis of the gear. II. De-
signing and erecting the gear. III. Advantages of the gear. IV. Questions and answers
relating to the Walschaert Valve Gear.

This last division contains sixty pertinent questions with full answers on all the features of
this type of valve gear, which will be especially valuable to firemen and engineers in prepar-
ing for an examination for promotion. Nearly 200 pages. Price
$1.50
CATECHISM. By

WESTINGHOUSE E-T AIR-BRAKE INSTRUCTION POCKET
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 Equip
ment, including the Standard No. 5 and the Perfected No. 6 Style of brake, is treated in de-
tail. 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 of 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. $6.00 per single volume.
For complete set of five volumes. Price
$25.00

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 of 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, and it saves you the trouble of bothering the boss. 131 pages. Price 50 cents 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. 11th edition. 400 octavo pages. Price $2.50 MECHANICAL APPLIANCES, MECHANICAL MOVEMENTS AND NOVELTIES OF CONSTRUCTION. By GARDNER D. HISCOX.

This is a supplementary volume to the ore 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, Prony brakes, thermometers, various types of boilers, solar engines, oil-fuel burners, condensers, evaporators, Corliss and other value gears, governors, gas engines, water motors of various descriptions, air ships, motors and dynamos, automobile and motor bicycles, railway block signals, car coupes, link and gear motions, ball bearings, breech block mechanism for heavy guns, and a large accumulation of others of equal importance. 1,000 specially made engravings. 396 octavo pages. Price $2.50 MODERN MACHINE SHOP CONSTRUCTION, EQUIPMENT AND MANAGEMENT. By OSCAR E. PERRIGO.

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
Just the book needed by those contemplating the erection of modern shop buildings, the re-
building 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-around
book of its kind ever published. 400 large quarto pages. 225 original and specially-made
illustrations. Price
$5.00

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. 5th edition. Price
$3.00

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 vari-
ety 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 in a practical manner.
Fifth Edition. 320 pages. 250 illustrations. Price.
$2.50

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 infor-
mation 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.

Milling cutters in all their development and modernized forms are illustrated and described,
and the operations they are capable of producing upon different classes of work are carefully
described in detail, and the speeds and feeds necessary are discussed, and valuable and useful
data given for determining these usually perplexing problems. The book is the most compre
hensive work published on the subject. 304 pages.
300 illustrations. Price . . $4.00

MODERN MECHANISM.

Edited by PARK BENJAMIN.

A practical treatise on machines, motors and the transmission of power, being a complete
work and a supplementary volume to Appleton's Cyclopedia of Applied Mechanics. Deals
solely with the principal and most useful advances of the past few years. 959 pages contain-
ing over 1,000 illustrations; bound in half morocco.
$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. Price
25 cents

TOOLS FOR MACHINISTS AND WOOD WORKERS, INCLUDING INSTRUMENTS
OF MEASUREMENT. By JOSEPH G. HORNER.

The principles upon which cutting tools for wood, metal, and other substances are made are
identical, whether used by the machinist, the carpenter, or by any other skilled mechanic in
their daily work, and the object of this book is to give a correct and practical description of
these tools as they are commonly designed, constructed, and used. 340 pages, fully illustrated.
Price
$3.50

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 item-
ized 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.
Price
$1.50

MARINE ENGINEERING

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 for such a work has been felt by most engineers engaged in the con-
struction 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.

This work is clearly written, thoroughly systematic, theoretically sound; while the character
of its plans, drawings, tables, and statistics is without reproach. The illustrations are care-
ful reproductions from actual working drawings, with some well-executed photographic views
of completed engines and boilers. 722 pages. 550 illustrations.
$9.00 not

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 they may find.

Among the chapters given are: Titaniferous and Chromiferous Iron Oxides-Nickel-Copper-Cobalt-Tin-Molybdenum-Tungsten-Lead-Mercury-Antimony-Iron-Hints to

Prospectors.

PRACTICAL COAL MINING. By T. H. COCKIN.

$2.00

An important work, containing 428 pages and 213 illustrations, complete with practical de-
tails, which will intuitively impart to the reader, not only a general knowledge of the princi-
ples of coal mining, but also considerable insight into allied subjects. The treatise is posi-
tively 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.
$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.
Among its contents are chapters on: The Atmosphere; Laws Relating to the Behavior of
Gases; The Diffusion of Gases; Composition of the Atmosphere: Sundry Constituents of the
Atmosphere; Water; Carbon; Fire-Damp; Combustion; Coal Dust and Its Action; Ex-
plosives; Composition of Various Coals and Fuels; Methods of Analysis of Coal; Strata Ad-
joining the Coal Measures; Magnetism and Electricity; Appendix; Useful Tables, etc.;
Miscellaneous Questions. 160 pages. Illustrated.
$2.00

PATTERN MAKING

PRACTICAL PATTERN MAKING. By F. W. BARROWS.

This is a very complete and entirely practical treatise on the subject of pattern making, illus
trating pattern work in wood and metal. From its pages you are taught just what you shoul
know about pattern making. It contains a detailed description of the materials used by
pattern makers, also the tools, both those for hand use, and the more interesting machine tools;
having complete chapters on the band saw, The Buzz Saw, and the Lathe. Individual patterns
of many different kinds are fully illustrated and described, and the mounting of metal patterns
on plates for molding machines is included. Price
$2.00

PERFUMERY

HENLEY'S TWENTIETH CENTURY BOOK OF RECEIPTS, FORMULAS AND PROCESSES
Edited by G. D. Hiscox.

The most valuable Techno-chemical Receipt Book published. Contains over 10,000 practical
receipts, many of which will prove of special value to the perfumer, a mine of information, up-
to-date in every respect. Price, Cloth, $3.00: half morocco
$4.00

PERFUMES AND THEIR PREPARATION. By G. W. ASKINSON, Perfumer.

A comprehensive treatise, in which there has been nothing omitted that could be of value
to the Perfumer. Complete directions for making handkerchief perfumes, smelling-salts,
sachets, fumigating pastilles; preparations for the care of the skin, the mouth, the hair, cos-
metics, hair dyes and other toilet articles are given, also a detailed description of aromatic
substances; their nature, tests of purity, and wholesale manufacture. A book of general,
as well as professional interest, meeting the wants not only of the druggist and perfume man-
ufacturer, but also of the general public. Third edition.
312 pages. Illustrated. $3.00

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. 150 illustra-
tions. Price
. . $1.50

MODERN PLUMBING ILLUSTRATED.

By R. M. STARBUCK.

It is

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.
It gives connections, sizes and working data for all fixtures and groups of fixtures.
helpful to the master plumber in demonstrating to his customers and in guring work. It
gives the mechanic and student quick and easy access to the best modern plumbing practice.
Suggestions for estimating plumbing construction are contained in its pages. This book
represents, in a word, the latest and best up-to-date practice, and should be in the hands of
every architect, sanitary engineer and plumber who wishes to keep himself up to the minute
on this important feature of construction. 400 octavo pages, fully illustrated by 55 full-page
engravings. Price

STANDARD PRACTICAL PLUMBING. By R. M. STARBUCK.

$4.00

A complete practical treatise of 450 pages covering the subject of Modern Plumbing in all its
Branches, a large amount of space being devoted to a very complete and practical treatment of
the subject of Hot Water Supply and Circulation and Range Boiler Work. Its thirty chapters
include about every phase of the subject, one can think of, making it an indispensable work
to the master plumber, the journeyman plumber, and the apprentice plumber. Fully illus-
trated by 347 engravings. Price
$3.00

RECEIPT BOOK

HENLEY'S TWENTIETH CENTURY BOOK OF RECEIPTS, FORMULAS AND PROCESSES. Edited by GARDNER D. HISCOX.

The most valuable Techno-chemical Receipt Book published, including over 10,000 selected
scientific, chemical, technological, and practical receipts and processes.

This is the most complete Book of Receipts ever published, giving thousands of receipts for
the manufacture of valuable articles for everyday use. Hints, Helps, Practical Ideas, and
Secret Processes are revealed within its pages. It covers every branch of the useful arts and
tells thousands of ways of making money and is just the book everyone should have at his
command. 800 pages.
Price
$3.00

RUBBER

RUBBER HAND STAMPS AND THE MANIPULATION OF INDIA RUBBER. By
T. O'CONOR SLOANE.

This book gives full details on all points, treating in a concise and simple manner the elements
of nearly everything it is necessary to understand for a commencement in any branch of the
India Rubber Manufacture. The making of all kinds of Rubber Hand Stamps, Small Articles
of India Rubber, U. S. Government Composition, Dating Hand Stamps, the Manipulation
of Sheet Rubber, Toy Balloons, India Rubber Solutions, Cements, Blackings, Renovating
Varnish, and Treatment for India Rubber Shoes, etc.; the Hektograph Stamp Inks, and
Miscellaneous Notes, with a Short Account of the Discovery, Collection, and Manufacture of
India Rubber are set forth in a manner designed to be readily understood, the explanations
being plain and simple. Second edition.
144 pages.
Illustrated.
$1.00

SAWS

SAW FILINGS AND MANAGEMENT OF SAWS.

By ROBERT GRIMSHAW.

A practical hand book on filing, gumming, swaging, hammering, and the brazing of band saws,
the speed, work, and power to run circular saws, etc. A handy book for those who have charge
of saws, or for those mechanics who do their own filing, as it deals with the proper shape and
pitches of saw teeth of all kinds and gives many useful hints and rules for gumming, setting,
and filing, and is a practical aid to those who use saws for any purpose. New edition, revised
and enlarged Illsütrated Price
$1.00