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.