HENRY CAREY BAIRD,

SUCCESSOR TO E. L. CAREY,

No. 7 Hart's Building, Sixth Street above Chestnut, Philadelphia.

SCIENTIFIC AND PRACTICAL.

THE PRACTICAL MODEL CALCULATOR, FOR the Engineer, Machinist, Manufacturer of Engine Work, Naval Architect, Miner, and Millwright. By OLIVER Byrne, Compiler and Editor of the Dictionary of Machines, Mechanics, Engine Work and Engineering, and Author of various Mathematical and Mechanical Works. Illustrated by numerous Engravings. Now Complete, One large Volume, Octavo, of nearly six hundred pages... $3.50

It will contain such calculations as are met with and required in the Mechanical Arts, and establish models or standards to guide practical men. The Tables that are introduced, many of which are new, will greatly economize labour, and render the every-day calculations of the practical man comprehensive and easy. From every single calculation given in this work numerous other calculations are readily modelled, so that each may be considered the head of a numerous family of practical results.

The examples selected will be found appropriate, and in all cases taken from the actual practice of the present time. Every rule has been tested by the unerring results of mathematical research, and confirmed by experiment, when such was necessary.

The Practical Model Calculator will be found to fill a vacancy in the library of the practical working-man long considered a requirement. It will be found to excel all other works of a similar nature, from the great extent of its range, the exemplary nature of its well-selected examples, and from the easy, simple, and systematic manner in which the model calculations are established.

NORRIS'S HAND-BOOK FOR LOCOMOTIVE ENGI NEERS AND MACHINISTS:

Comprising the Calculations for Constructing Locomotives Manner of setting Valves, &c. &c. By SEPTIMUS NORRIS, Civil and Mechanical Engineer. In One Volume, 12mo., with illus trations..... $1.50

THE ARTS OF TANNING AND CURRYING Theoretically and Practically considered in all their details. Being a full and comprehensive Treatise on the Manufacture of the various kinds of Leather. Illustrated by over two hundred Engravings. Edited from the French of De Fontenelle and Malapeyere. With numerous Emendations and Additions, by CAMPBELL MORFIT, Practical and Analytical Chemist. plete in one Volume, octavo.....

Com

$5.00

This important Treatise will be found to cover the whole field in the most masterly manner, and it is believed that in no other branch of applied science could more signal service be rendered to American Manufacturers.

The publisher is not aware that in any other work heretofore issued in this country, more space has been devoted to this subject than a single chapter; and in offering this volume to so large and intelligent a class as American Tanners and Leather Dressers, he feels confident of their substantial support and encouragement.

THE PRACTICAL COTTON-SPINNER AND MANUFACTURER; Or, The Manager's and Overseer's Companion.

This works contains a Comprehensive System of Calculations for Mill Gearing and Machinery, from the first moving power through the different processes of Carding, Drawing, Slabbing, Roving, Spinning, and Weaving, adapted to American Machinery, Practice, and Usages. Compendious Tables of Yarns and Reeds are added. Illustrated by large Working-drawings of the most approved American Cotton Machinery. Complete in One Volume, octavo... $3.50

This edition of Scott's Cotton-Spinner, by OLIVER BYRNE, is designed for the American Operative. It will be found intensely practical, and will be of the greatest possible value to the Manager, Overseer, and Workman.

THE PRACTICAL METAL-WORKER'S ASSISTANT,

For Tin-Plate Workers, Brasiers, Coppersmiths, Zinc-Plate Ornamenters and Workers, Wire Workers, Whitesmiths, Blacksmiths, Bell Hangers, Jewellers, Silver and Gold Smiths, Electrotypers, and all other Workers in Alloys and Metals. By CHARLES HOLTZAPPFEL. Edited, with important additions, by OLIVER BYRNE. Complete in One Volume, octavo...... .$4.00

It will treat of Casting, Founding, and Forging; of Tongs and other Tools; Degrees of Heat and Managemnet of Fires; Welding; of Heading and Swage Tools; of Punches and Anvils; of Hardening and Tempering; of Malleable Iron Castings, Case Hardening, Wrought and Cast Iron. The management and ma nipulation of Metals and Alloys, Melting and Mixing. The management of Furnaces, Casting and Founding with Metallic Moulds, Joining and Working Sheet Metal. Peculiarities of the different Tools employed. Processes dependent ou the ductility of Metals. Wire Drawing, Drawing Metal Tubes, Soldering. The use of the blowpipe, and every other known Metal-Worker's Tool. To the works of Holtzappfel, OLIVER BYRNE has added all that is useful and peculiar to the American Metal-Worker.

THE MANUFACTURE OF IRON IN ALL ITS
VARIOUS BRANCHES:

To which is added an Essay on the Manufacture of Steel, by FREDERICK OVERMAN, Mining Engineer, with one hundred and fifty Wood Engravings. A new edition. In In One Volume, octavo, five hundred pages....... $5.00

We have now to announce the appearance of another valuable work on the subject which, in our humble opinion, supplies any deficiency which late improvements and discoveries may have caused, from the lapse of time since the date of "Mushet" and "Schrivenor." It is the production of one of our transatlantic brethren, Mr. Frederick Overman, Mining Engineer; and we do not hesitate to set it down as a work of great importance to all connected with the iron interest; one which, while it is sufficiently technological fully to explain chemical analysis, and the various phenomena of iron under different circumstances, to the satisfaction of the most fastidious, is written in that clear and comprehensive style as to be available to the capacity of the humblest mind, and consequently will be of much advantage to those works where the proprie tors may see the desirability of placing it in the hands of their operatives.London Morning Journal.

A TREATISE ON THE AMERICAN STEAM-ENGINE.
Illustrated by numerous Wood Cuts and other Engravings.
By OLIVER BYRNE. In One Volume.
(In press.)

PROPELLERS AND STEAM NAVIGATION:

With Biographical Sketches of Early Inventors. By ROBERT In MACFARLANE, C. E., Editor of the "Scientific American.' One Volume, 12mo. Illustrated by over Eighty Wood Engrav..75 cts. ings...

The object of this "History of Propellers and Steam Navigation" is twofold. One is the arrangement and description of many devices which have been invented to propel vessels, in order to prevent many ingenious men from wasting their time, talents, and money on such projects. The immense amount of time, study, and money thrown away on such contrivances is beyond calculation. In this respect, it is hoped that it will be the means of doing some good.Preface.

A TREATISE ON SCREW-PROPELLERS AND
THEIR STEAM-ENGINES.

With Practical Rules and Examples by which to Calculate and Construct the same for any description of Vessels. By J. W. NYSTROM. Illustrated by thirty-two large working Drawings. In one Volume, octavo... $3.50

PRACTICAL SERIES.

THE AMERICAN MILLER AND MILLWRIGHT'S ASSISTANT. $1.

THE TURNER'S COMPANION. 75 cts.

THE PAINTER, GILDER, AND VARNISHER'S COMPANION. 75 cts.

THE DYER AND COLOUR-MAKER'S COMPANION. 75 cts. THE BUILDER'S COMPANION. $1.

THE CABINET-MAKER'S COMPANION. 75 cts.

A TREATISE ON A BOX OF INSTRUMENTS. BY THOMAS KENTISH.

$1.

THE PAPER-HANGER'S COMPANION. BY J. ARROWSMITH. 75 cts.

THE ASSAYER'S GUIDE. BY OSCAR M. LIEBER. 75 cts. THE COMPLETE PRACTICAL BREWER. BY M. L. BYRN. $1. THE COMPLETE PRACTICAL DISTILLER. BY M. L. BYRN. $1. THE BOOKBINDER'S MANUAL.

THE PYROTECHNIST'S COMPANION. By G. W. MORTI

MER. 75 cts.

WALKER'S ELECTROTYPE MANIPULATION.
COLBURN ON THE LOCOMOTIVE ENGINE.

75 cts

75 cts.

THE AMERICAN MILLER AND MILLWRIGHT'S ASSISTANT:

By WILLIAM CARTER HUGHES, Editor of "The American Mil ler," (newspaper,) Buffalo, N. Y. Illustrated by Drawings of the most approved Machinery. In One Volume, 12mo.........$1

The author offers it as a substantial reference, instead of speculative theories, which belong only to those not immediately attached to the business. Special notice is also given of most of the essential improvements which have of late been introduced for the benefit of the Miller.-Savannah Republican.

The whole business of making flour is most thoroughly treated by him.— Bulletin

A very comprehensive view of the Millwright's business.-Southern Literary Messenger.

THE TURNER'S COMPANION:

Containing Instructions in Concentric, Elliptic, and Eccentric Turning. Also, various Plates of Chucks, Tools, and Instruments, and Directions for using the Eccentric Cutter, Drill, Vertical Cutter, and Circular Rest: with patterns and Instructions for working them. Illustrated by numerous Engravings. In One Volume, 12mo........ .....75 cts.

The object of the Turner's Companion is to explain in a clear, concise, and intelligible manner, the rudiments of this beautiful art.-Savannah Republican. There is no description of turning or lathe-work that this elegant little treatise does not describe and illustrate.-Western Lit. Messenger.