By Ed. Urbin, Engineer of Arts and Manufactures. A Prize Essay, read before the Association of Engineers, Graduate of the School of Mines, of Liege, Belgium, at the Meeting of 1865-6. To which is added A Comparison of the Resisting Properties of Iron and Steel. By A. Brull. Translated from the French by A.A. Fesquet, Chemist and Engineer. 8vo. $1.00

VAILE.—Galvanized-Iron Cornice-Worker's Manual:

Containing Instructions in Laying out the Different. Mitres, and Making Patterns for all kinds of Plain and Circular Work. Also, Tables of Weights, Areas and Circumferences of Circles, and other Matter calculated to Benefit the Trade. By Charles A. Vaile. Illustrated by twenty-one plates. 4to. $5.00

VILLE.—On Artificial Manures:

Their Chemical Selection and Scientific Application to Agriculture. A series of Lectures given at the Experimental Farm at Vincennes, during 1867 and 1874-75. By M. Georges Ville. Translated and Edited by William Crookes, F.R.S. Illustrated by thirty-one engravings. 8vo., 450 pages. $6.00

VILLE.—The School of Chemical Manures:

Or, Elementary Principles in the Use of Fertilizing Agents. From the French of M. Geo. Ville, by A.A. Fesquet, Chemist and Engineer. With Illustrations. 12mo. $1.25

VOGDES.—The Architect's and Builder's Pocket-Companion and Price-Book:

Consisting of a Short but Comprehensive Epitome of Decimals, Duodecimals, Geometry and Mensuration; with Tables of United States Measures, Sizes, Weights, Strengths, etc., of Iron, Wood, Stone, Brick, Cement and Concretes, Quantities of Materials in given Sizes and Dimensions of Wood, Brick and Stone; and full and complete Bills of Prices for Carpenter's Work and Painting; also, Rules for Computing and Valuing Brick and Brick Work, Stone Work, Painting, Plastering, with a Vocabulary of Technical Terms, etc. By Frank W. Vogdes, Architect, Indianapolis, Ind. Enlarged, revised, and corrected. In one volume, 368 pages, full-bound, pocket-book form, gilt edges. $2.00

Cloth 1.50