Comprising Rules for Calculating Deflection Distances and Angles, Tangential Distances and Angles, and all Necessary Tables for Engineers; also the art of Levelling from Preliminary Survey to the Construction of Railroads, intended Expressly for the Young Engineer, together with Numerous Valuable Rules and Examples. By W. Griswold. 12mo., tucks. $1.75
GRUNER.—Studies of Blast Furnace Phenomena.
By M. L. Gruner, President of the General Council of Mines of France, and lately Professor of Metallurgy at the Ecole des Mines. Translated, with the Author's sanction, with an Appendix, by L. D. B. Gordon, F.R.S.E., F.G.S. Illustrated. 8vo. $2.50
GUETTIER.—Metallic Alloys:
Being a Practical Guide to their Chemical and Physical Properties, their Preparation, Composition, and Uses. Translated from the French of A. Guettier, Engineer and Director of Foundries, author of "La Fouderie en France," etc., etc. By A. A. Fesquet, Chemist and Engineer. In one volume, 12mo. $3.00
HARRIS.—Gas Superintendent's Pocket Companion.
By Harris & Brother, Gas Meter Manufacturers, 1115 and 1117 Cherry Street, Philadelphia. Full bound in pocket-book form. $2.00
Hats and Felting:
A Practical Treatise on their Manufacture. By a Practical Hatter. Illustrated by Drawings of Machinery, etc. 8vo. $1.25