Napier's Electro-Metallurgy is generally regarded as the very best Practical Treatise on the Subject in the English Language.

CONTENTS. - History of the Art of Electro-Metallurgy - Description of Galvanic Batteries, and their respective Peculiarities - I trotype Processes - Miscellaneous Applications of the Process of Coating with Copper - Bronzing - Decomposition of Metals upon one another - Electro-Plating - Electro-Gilding - Results of Experiments on the Deposition of other Metals as Coatings, Theoretical Observations.

Norris's Hand-book for Locomotive Engineers and Machinists;

Comprising the Calculations for Constructing Locomotives, Manner of setting Valves, etc., etc. By Septimus Norris, Civil and Mechanical Engineer. In one volume 12mo., with Illustrations.....................................$2.00

"With pleasure do we meet with such a work as Messrs. Norris and Baird have given us." - Artizan.

"In this work he has given us what are called 'the secrets of the business,' in the rules to construct locomotives, in order that the million should be learned in all things." - Scientific American.

Nyslrom, 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 over thirty large Working Drawings. In one volume, octavo...$6.00

Published By Henry Carey Baird.

Overman, 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. third edition. in one volume, octavo, five hundred pages................$7.50

"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 Trans-Atlantic 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 interests; 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 proprietors may see the desirability of placing it in the hands of their operatives." - London Mining Journal.

Painter, Gilder and Varnisher's Companion;

Containing Rules and Regulations in everything relating to the Arts of Painting, Gilding, Varnishing and Glass Staining; with numerous useful and valuable Receipts; Tests for the detection of Adulterations in Oils and Colors; and a statement of the Diseases and Accidents to which Painters, Gilders and Varnishers are particularly liable, with the simplest methods of Prevention and Remedy. Eighth edition. To which are added Complete Instructions in Graining, Marbling, Sign Writing, and Gilding on Glass. 12mo., cloth...........................$1.25

Paper-Hanger's (The) Companion;

In which the Practical Operations of the Trade are systematically laid down; with copious Directions Preparatory to Papering; Preventions against the effect of Damp in Walls; the various Cements and Pastes adapted to the several purposes of the Trade; Observations and Directions for the Panelling and Ornamenting of Rooms, etc., etc. By James Arrowsmith. In one volume 12mo...............................................................$1.25

Practical (The) Surveyor's Guide;

Containing the necessary information to make any person of common capacity a finished Land Survevor, without the aid of a Teacher. By Andrew Duncan, Land Surveyor and Civil Engineer. 12mo....................$1.25

Having had an experience as a Practical Surveyor, etc., of thirty years, it is believed that the author of this volume possesses a thorough knowledge of the wants of the profession; and never having met with any work sufficiently concise and instructive in the several details necessary for the proper qualification of the Surveyor, it has been his object to supply that want. Among other important matters in the book, will be found the following:

Instructions in levelling and profiling, with a new and speedy plan of setting grades on rail and plank roads - the method of inflecting curves - the description and design of a new instrument, whereby distances are found at once, without any calculation - a new method of surveying any tract of land by measuring one line through it - a geometrical method of correcting surveys taken with the compass, to fit them for calculation - a short method of finding the angles from the courses, and vice versa - the method of surveying with the compass through any mine or iron works, and to correct the deflections of the needle by attraction - description of an instrument by the help of which any one may measure a map by inspection, without calculation - a new and short method of calculation, wherein fewer figures are used - the method of correcting the diurnal variation of the needle - various methods of plotting and embellishing maps - the most correct method of laying off plots with the pole, etc. - description of a new compass contrived by the author, etc., etc.

Railroad Engineer's Pocket Companion for the Field.

By W. Griswold. 12mo., tucks............................$1.25

Regnault. Elements of Chemistry,

By M. V. Regnault. Translated from the French by T. Forrest Betton, M.D., and edited, with notes, by James C. Booth, Melter and Refiner U. S. Mint, and William L. Faber, Metallurgist and Mining Engineer. Illustrated by nearly 700 wood engravings. Comprising nearly 1,500 pages. In two volumes, 8vo., cloth....................$10.00

Rural Chemistry;

An Elementary Introduction to the Study of the Science, in its relation to Agriculture and the Arts of Life. By Edward Solly, Professor of Chemistry in the Horticultural Society of London. From the third improved London edition. 12mo.............................................$1.50

Shunk, A Practical Treatise

On Railway Curves, and Location for Young Engineers. By Wm. F. Shunk, Civil Engineer. 12mo............$1.00

Strength and Other Properties of Metals;

Reports of Experiments on the Strength and other Properties of Metals for Cannon. With a Description of the Machines for Testing Metals, and of the Classification of Cannon in service. By Officers of the Ordnance Department U. S. Army. By authority of the Secretary of War. Illustrated by 25 large steel plates. In one volume, quarto..........................................................$10.08

Published By Henry Carey Baird.

The best Treatise on Cast-iron extant.

Tables Showing the Weight

Of Round, Square and Flat Bar Iron, Steel, etc., by Measurement. Cloth............................................ 50

Taylor. Statistics of Coal;

Including Mineral Bituminous Substances employed in Arts and Manufactures; with their Geographical, Geological and Commercial Distribution, and Amount of Production and Consumption on the American Continent. With Incidental Statistics of the Iron Manufacture. By R. C. Taylor. Second edition, revised by S. S. Halde-man. Illustrated by five Maps and many Wood Engravings. 8vo., cloth.............................................$6.00

Templeton. The Practical Examinator on Steam and the Steam Engine;

With Instructive References relative thereto, arranged for the use of Engineers, Students, and others. By Wm. Templeton, Engineer. 12mo...............................$1.25

This work was originally written for the author's private use. He was prevailed upon by various Engineers, who had seen the notes, to consent to its publication, from their eager expression of belief that it would be equally useful to them as it had been to himself.

Tin and Sheet Iron Worker's Instructor;

Comprising complete Descriptions of the necessary Patterns and Machinery, and the Processes of Calculating Dimensions, Cutting, Joining, Raising, Soldering, etc. etc. With numerous Illustrations.......................$2.50

Treatise (A) on a Box of Instruments,

And the Slide Rule; with the Theory of Trigonometry and Logarithms, including Practical Geometry, Survey ing, Measuring of Timber, Cask and Malt Gauging,Heights and Distances. By Thomas Kentish. In one volume, 12mo...................................................$1.25

A volume of inestimable value to Engineers, Gaugers, Students, and others.

Turnbull, The Electro-Magnetic Telegraph;

With an Historical Account of its Rise, Progress, and Present Condition. Also, Practical Suggestions in regard to Insulation and Protection from the Effects of Lightning. Together with an Appendix containing several important Telegraphic Devices and Laws. By Lawrence Turnbull, M. D., Lecturer on Technical Chemistry at the Franklin Institute. Second edition. Revised and improved. Illustrated by numerous Engravings. 8vo..$2.50

Turner's (The) Companion;

Containing Instruction in Concentric, Elliptic and Eccentric Turning; also various Steel Plates of Chucks, Tools and Instruments; and Directions for Using the Eccentric Cutter, Drill, Vertical Cutter and Rest; with Patterns and Instructions for working them. 12mo., cloth.. $1.25

Weatherley (Henry), Treatise on the Art of Boiling Sugar, Crystallizing, Lozenge-making, Comfits, Gum Goods,

12mo.................................................................$2.00

Williams, On Heat and Steam;

Embracing New Views of Vaporization, Condensation, and Expansion. By Charles Wye Williams. Illustrated. 8vo...................................................................$3.50