PAINTER, GILDER, AND VARNISHER'S COMPANION:

Containing Rules and Regulations in everything relating to the Arts of Painting, Gilding, Varnishing, Glass-Staining, Graining, Marbling, Sign-Writing, Gilding on Glass, and Coach Painting and Varnishing; Tests for the Detection of Adulterations in Oils, Colors, etc.; and a Statement of the Diseases to which Painters are peculiarly liable, with the Simplest and Best Remedies. Sixteenth Edition. Revised, with an Appendix. Containing Colors and Coloring - Theoretical and Practical. Comprising descriptions of a great variety of Additional Pigments, their Qualities and Uses, to which are added, Dryers, and Modes and Operations of Painting, etc. Together with Chevreul's Principles of Harmony and Contrast of Colors. 12mo. Cloth $1.50

PALLETT. - The Miller's, Millwright's, and Engineer's Guide.

By Henry Pallett. Illustrated. 12mo. $3.00

PEARSE. - A Concise History of the Iron Manufacture of the American Colonies up to the Revolution, and of Pennsylvania until the present time.

By John B. Pearse. Illustrated 12mo. $2.00

PERCY. - The Manufacture of Russian Sheet-Iron.

By John Percy, M.D., F.R.S., Lecturer on Metallurgy at the Royal School of Mines, and to The Advance Class of Artillery Officers at the Royal Artillery Institution, Woolwich; Author of "Metallurgy." With Illustrations. 8vo., paper 50 cts.

PERKINS. - Gas and Ventilation:

Practical Treatise on Gas and Ventilation. With Special Relation to Illuminating, Heating, and Cooking by Gas. Including Scientific Helps to Engineer-students and others. With Illustrated Diagrams. By E.E. Perkins. 12mo., cloth $1.25

PERKINS AND STOWE. - A New Guide to the Sheet-iron and Boiler Plate Roller:

Containing a Series of Tables showing the Weight of Slabs and Piles to Produce Boiler Plates, and of the Weight of Piles and the Sizes of Bars to produce Sheet-iron; the Thickness of the Bar Gauge in decimals; the Weight per foot, and the Thickness on the Bar or Wire Gauge of the fractional parts of an inch; the Weight per sheet, and the Thickness on the Wire Gauge of Sheet-iron of various dimensions to weigh 112 lbs. per bundle; and the conversion of Short Weight into Long Weight, and Long Weight into Short. Estimated and collected by G.H. Perkins and J.G. Stowe. $2.50

POWELL - CHANCE - HARRIS. - The Principles of Glass Making.

By Harry J. Powell, B.A. Together with Treatises on Crown and Sheet Glass; by Henry Chance, M.A. And Plate Glass, by H. G. Harris, Asso. M. Inst. C.E. Illustrated 18mo. $1.50

PROTEAUX. - Practical Guide for the Manufacture of Paper and Boards.

By A. Proteaux. From the French, by Horatio Paine, A.B., M.D. To which is added the Manufacture of Paper from Wood, by Henry T. Brown. Illustrated by six plates. 8vo.

PROCTOR. - A Pocket-Book of Useful Tables and Formulæ for Marine Engineers.

By Frank Proctor. Second Edition, Revised and Enlarged. Full bound pocket-book form. $1.50

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 $7.50

RIFFAULT, VERGNAUD, and TOUSSAINT. - A Practical Treatise on the Manufacture of Colors for Painting:

Comprising the Origin, Definition, and Classification of Colors; the Treatment of the Raw Materials; the best Formulæ and the Newest Processes for the Preparation of every description of Pigment, and the Necessary Apparatus and Directions for its Use; Dryers; the Testing, Application, and Qualities of Paints, etc., etc. By MM. Riffault, Vergnaud, and Toussaint. Revised and Edited by M. F. Malepeyre. Translated from the French, by A.A. Fesquet, Chemist and Engineer. Illustrated by Eighty engravings. In one vol., 8vo., 659 pages. $7.50

ROPER. - A Catechism of High-Pressure, or Non-Condensing Steam-Engines:

Including the Modelling, Constructing, and Management of Steam-Engines and Steam Boilers. With valuable illustrations. By Stephen Roper, Engineer. Sixteenth edition, revised and enlarged. 18mo., tucks, gilt edge. $2.00

ROPER. - Engineer's Handy-Book:

Containing a full Explanation of the Steam-Engine Indicator, and its Use and Advantages to Engineers and Steam Users. With Formulæ for Estimating the Power of all Classes of Steam-Engines; also, Facts, Figures, Questions, and Tables for Engineers who wish to qualify themselves for the United States Navy, the Revenue Service, the Mercantile Marine, or to take charge of the Better Class of Stationary Steam-Engines. Sixth edition. 16mo., 690 pages, tucks, gilt edge. $3.50

ROPER. - Hand-Book of Land and Marine Engines:

Including the Modelling, Construction, Running, and Management of Land and Marine Engines and Boilers. With illustrations. By Stephen Roper, Engineer. Sixth edition. 12mo., tucks, gilt edge. $3.50

ROPER. - Hand-Book of the Locomotive:

Including the Construction of Engines and Boilers, and the Construction, Management, and Running of Locomotives. By Stephen Roper. Eleventh edition. 18mo., tucks, gilt edge. $2.50

ROPER. - Hand-Book of Modern Steam Fire-Engines.

With illustrations. By Stephen Roper, Engineer. Fourth edition, 12mo., tucks, gilt edge. $3.50

ROPER. - Questions and Answers for Engineers.

This little book contains all the Questions that Engineers will be asked when undergoing an Examination for the purpose of procuring Licenses, and they are so plain that any Engineer or Fireman of ordinary intelligence may commit them to memory in a short time. By Stephen Roper, Engineer. Third edition. $3.00

ROPER. - Use and Abuse of the Steam Boiler.

By Stephen Roper, Engineer. Eighth edition, with illustrations. 18mo., tucks, gilt edge. $2.00