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.

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 comprehensive 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 containing over 1,000 illustrations; bound in half morocco.

"SHOP KINKS." By ROBERT GRIMSHAW.

$4.00

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, mare
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. $3.50

Price

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 $1.50

Price

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 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 respect8 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 careful 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.
. .

PHYSICS AND CHEMISTRY OF MINING. By T. H. BYROM.

$2.50

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 should
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, cosmetics, 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 manufacturer, 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.

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. It is
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
$4.00

STANDARD PRACTICAL PLUMBING. By R. M. STARBUCK.

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 inaking 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 ruies for gumming, setting,
and filing, and is a practical aid to those who use saws for any purpose. New edition, revised
and enlarged Illsutrated Price
$1.00

STEAM ENGINEERING

AMERICAN STATIONARY ENGINEERING.

By W. E. CRANE.

This book begins at the boiler room and takes in the whole power plant. A plain talk on
every-day work about engines, boilers, and their accessories. It is not intended to be scien-
tific or mathematical. All formulas are in simple form so that any one understanding plain
arithmetic can readily understand any of them. The author has made this the most prac-
tical book in print; has given the results of his years of experience, and has included about
all that has to do with an engine room or a power plant. You are not left to guess at a single
point. You are shown clearly what to expect under the various conditions; how to secure
the best results; ways of preventing "shut downs" and repairs; in short, all that goes to
make up the requirements of a good engineer, capable of taking charge of a plant. It's plain
enough for practical men and yet of value to those high in the profession. Has a complete
examination for a license.
$2.00

EMINENT ENGINEERS. By DWIGHT GODDARD.

Everyone who appreciates the effect of such great inventions as the Steam Engine, Steamboat,
Locomotive, Sewing Machine, Steel Working, and other fundamental discoveries, is interested
in knowing a little about the men who made them and their achievements.

Mr. Goddard has selected thirty-two of the world's engineers who have contributed most
largely to the advancement of our civilization by mechanical means, giving only such facts as
are of general interest and in a way which appeals to all, whether mechanics or not. 280
pages. 35 illustrations. Price
. . $1.50

Engine runNER'S CATECHISM. By ROBERT GRIMSHAW.

A practical treatise for the stationary engineer, telling how to erect, adjust and run the prin-
cipal steam engines in use in the United States. Describing the principal features of various
special and well-known makes of engines: Temper Cut-off, Shipping and Receiving Founda-
tions, Erecting and Starting, Valve Setting, Care and Use, Emergencies, Erecting and Ad-
justing Special Engines.

The questions asked throughout the catechism are plain and to the point, and the answers
are given in such simple language as to be readily understood by anyone. All the instructions
given are complete and up-to-date; and they are written in a popular style, without any
technicalities or mathematical formulæ. The work is of a handy size for the pocket, clearly
and well printed, nicely bound, and profusely illustrated. To young engineers this catechism
will be of great value, especially to those who may be preparing to go forward to be examined
for certificates of competency; and to engineers generally it will be of no little service, as they
will find in this volume more really practical and useful information than is to be found any-
where else within a like compass. 387 pages. Seventh edition. Price.
$2.00

ENGINE TESTS AND BOILER EFFICIENCIES. By J. BUCHETTI.

This work fully describes and illustrates the method of testing the power of steam engines,
turbines and explosive motors. The properties of steam and the evaporative power of fuels.
Combustion of fuel and chimney draft; with formulas explained or practically computed.
255 pages, 179 illustrations.
$3.00

HORSE POWER CHART.

Shows the horse power of any stationary engine without calculation. No matter what the
cylinder diameter of stroke; the steam pressure or cut-off; the revolutions, or whether con-
densing or non-condensing, it's all there. Easy to use, accurate, and saves time and calcu-
lations. Especially useful to engineers and designers.
. 50 cents

MODERN STEAM ENGINEERING IN THEORY AND PRACTICE. BY GARDNER D. HISCOX This is a complete and practical work issued for Stationary Engineers and firemen dealing with the care and management of boilers, engines, pumps, superheated steam, refrigerating machinery, dynamos, motors, elevators, air compressors, and all other branches with which the modern engineer must be familiar. Nearly 200 questions with their answers on steam and electrical engineering, likely to be asked by the Examining Board, are included. 487 pages. 405 engravings. Price $3.00

STEAM ENGINE CATECHISM. By ROBERT GRIMSHAW.

This unique volume of 413 pages is not only a catechism on the question and answer princi-
ple; but it contains formulas and worked-out answers for all the Steam problems that apper-
tain to the operation and management of the Steam Engine. Illustrations of various valves
and valve gear with their principles of operation are given. Thirty-four Tables that are
indispensable to every engineer and fireman that wishes to be progressive and is ambitious to
become master of his calling are within its pages. It is a most valuable instructor in the
service of Steam Engineering. Leading engineers have recommended it as a valuable educa-
tor for the beginner as well as a reference book for the engineer. It is thoroughly indexed
for every detail. Every essential question on the Steam Engine with its answer is contained
in this valuable work. Sixteenth edition. Price
$2.00

STEAM ENGINEER'S ARITHMETIC. By COLVIN-CHENEY.

A practical pocket book for the steam engineer. Shows how to work the problems of the
engine room and shows "why." Tells how to figure horse-power of engines and boilers; area
of boilers; has tables of areas and circumferences; steam tables; has a dictionary of engineering
terms. Puts you on to all all of the little kinks in figuring whatever there is to figure around
a power plant. Tells you about the heat unit; absolute zero; adiabatic expansion; duty of
engines; factor of safety; and 1,001 other things; and everything is plain and simple not
the hardest way to figure, but the easiest.
50 cents

STEAM HEATING AND VENTILATION

PRACTICAL STEAM, HOT-WATER HEATING AND VENTILATION. By A. G. KING. This book is the standard and latest work published on the subject and has been prepared for the use of all engaged in the business of steam, hot water heating, and ventilation. It is an original and exhaustive work. Tells how to get heating contracts, how to install heating and ventilating apparatus, the best business methods to be used, with "Tricks of the Trade" for shop use. Rules and data for estimating radiation and cost and such tables and information as make it an indispensable work for everyone interested in steam, hot water heating, and ventilation. It describes all the principal systems of steam, hot water, vacuum, vapor, and vacuumvapor heating, together with the new accelerated systems of hot water circulation, including chapters on up-to-date methods of ventilation and the fan or blower system of heating and ventilation. 367 pages. 300 detailed engravings. Price . $3.00

STEAM PIPES

STEAM PIPES: THEIR DESIGN AND CONSTRUCTION. By WM. H. BOOTH. This book fills in a deep gap in scientific literature, as there has been very little written on the practical side of steam pipe construction. Steam piping to-day is such a costly item, and the successful operation of a large plant depends so inuch upon it, that the problem of minimum cost and maximum efficiency becomes very important. The work is well illustrated in regard to pipe joints, expansion offsets, flexible joints, and self-contained sliding joints for taking up the expansion of long pipes. In fact, the chapters on the flow of steam and expansion of pipes are most valuable to all steam fitters and users. The pressure strength of pipes and method of hanging them is well treated and illustrated. Valves and by-passes are fully illustrated and described, as are also flange joints and their proper proportions, exhaust heads and separators. One of the most valuable chapters is that on superheated steam and the saving of steam by insulation with the various kinds of felting and other materials with comparison tables of the loss of heat in thermal units from naked and felted steam pipes. Contains 187 pages. Price $2.00

STEEL

AMERICAN STEEL WORKER. By E. R. MARKHAM.

This book tells how to select, and how to work, temper, harden, and anneal steel for everything on earth. It doesn't tell how to temper one class of tools and then leave the treatment of another kind of tool to your imagination and judgment, but it gives careful instructions for every detail of every tool, whether it be a tap, a reamer or just a screw-driver. It tells about the tempering of small watch springs, the hardening of cutlery, and the annealing of dies. In fact there isn't a thing that a steel worker would want to know that isn't included. Price $2.50 HARDENING, TEMPERING, ANNEALING, AND FORGING OF STEEL. By J. V. WOOD

WORTH.

A new work treating in a clear, concise manner all modern processes for the heating, annealing, forging, welding, hardening, and tempering of steel, making it a book of great practical value to the metal-working mechanic in general, with special directions for the successful hardening and tempering of all steel tools used in the arts, including milling cutters, taps, thread dies, reamers, both solid and shell, hollow mills, punches and dies, and all kinds of sheet metal working tools, shear blades, saws, fine cutlery, and metal cutting tools of all description, as well as for all implements of steel both large and small. In this work the simplest and most satisfactory hardening and tempering processes are given.

The uses to which the leading brands of steel may be adapted are concisely presented, and their treatment for working under diferent conditions explained, also the special methods for the hardening and tempering of special brands.

A chapter devoted to the different processes for Case-hardening is also included, and special reference made to the adoption of machinery steel for tools of various kinds. Price. $2.50

WATCH MAKING

WATCHMAKER'S HANDBOOK. By CLAUDIUS SAUNIER.

This famous work has now reached its seventh edition and there is no work issued that can
compare to it for clearness and completeness. It contains 498 pages and is intended as a
workshop companion for those engaged in Watch-making and allied Mechanical Arts. Nearly
250 engravings and fourteen plates are included. Price
$3.00