Including Common, Pressed, Ornamentally Shaped, and Enamelled Bricks, Drain-Tiles, Straight and Curved Sewer-Pipes, Fire-Clays, Fire-Bricks, Terra-Cotta, Roofing-Tiles, Flooring-Tiles, Art-Tiles, Mosaic Plates, and Imitation of Intarsia or Inlaid Surfaces; comprising every important Product of Clay employed in Architecture, Engineering, the Blast-Furnace, for Retorts, etc., with a History and the Actual Processes in Handling, Disintegrating, Tempering, and Moulding the Clay into Shape, Drying Naturally and Artificially, Setting and Burning, Enamelling in Polychrome Colors, Composition and Application of Glazes, etc.; including Full Detailed Descriptions of the most modern Machines, Tools, Kilns, and Kiln-Roofs used. By Charles Thomas Davis. Illustrated by 228 Engravings and 6 Plates. 8vo., 472 pages $5.00

DAVIS. - The Manufacture of Leather:

Being a description of all of the Processes for the Tanning, Tawing, Currying, Finishing and Dyeing of every kind of Leather; including the various Raw Materials and the Methods for Determining their Values; the Tools, Machines, and all Details of Importance connected with an Intelligent and Profitable Prosecution of the Art, with Special Reference to the Best American Practice. To which are added Complete Lists of all American Patents for Materials, Processes, Tools, and Machines for Tanning, Currying, etc. By Charles Thomas Davis. Illustrated by 302 engravings and 12 Samples of Dyed Leathers. One vol., 8vo., 824 pages $10.00

DAWIDOWSKY - BRANNT. - A Practical Treatise on the Raw Materials and Fabrication of Glue, Gelatine, Gelatine Veneers and Foils, Isinglass, Cements, Pastes, Mucilages, etc.:

Based upon Actual Experience. By F. Dawidowsky, Technical Chemist. Translated from the German, with extensive additions, including a description of the most Recent American Processes, by William T. Brannt, Graduate of the Royal Agricultural College of Eldena, Prussia. 35 Engravings. 12mo. $2.50

DE GRAFF. - The Geometrical Stair-Builders' Guide:

Being a Plain Practical System of Hand-Railing, embracing all its necessary Details, and Geometrically Illustrated by twenty-two Steel Engravings; together with the use of the most approved principles of Practical Geometry. By Simon De Graff, Architect. 4to. $2.50

DE KONINCK - DIETZ. - A Practical Manual of Chemical Analysis and Assaying:

As applied to the Manufacture of Iron from its Ores, and to Cast Iron, Wrought Iron, and Steel, as found in Commerce. By L.L. De Koninck, Dr. Sc, and E. Dietz, Engineer. Edited with Notes, by Robert Mallet, F.R.S., F.S.G., M.I.C.E., etc. American Edition, Edited with Notes and an Appendix on Iron Ores, by A.A. Fesquet, Chemist and Engineer. 12mo. $2.50

DUNCAN. - Practical Surveyor's Guide:

Containing the necessary information to make any person of common capacity, a finished land surveyor without the aid of a teacher. By Andrew Duncan. Illustrated. 12mo. $1.25

DUPLAIS - A Treatise on the Manufacture and Distillation of Alcoholic Liquors:

Comprising Accurate and Complete Details in Regard to Alcohol from Wine, Molasses, Beets, Grain, Rice, Potatoes, Sorghum, Asphodel, Fruits, etc.; with the Distillation and Rectification of Brandy, Whiskey, Rum, Gin, Swiss Absinthe, etc., the Preparation of Aromatic Waters. Volatile Oils or Essences, Sugars, Syrups, Aromatic Tinctures, Liqueurs, Cordial Wines, Effervescing Wines, etc., the Ageing of Brandy and the improvement of Spirits, with Copious Directions and Tables for Testing and Reducing Spirituous Liquors, etc., etc. Translated and Edited from the French of MM. Duplais, Ainè et Jeune. By M. McKennie, M.D. To which are added the United States Internal Revenue Regulations for the Assessment and Collection of Taxes on Distilled Spirits. Illustrated by fourteen folding plates and several wood engravings. 743 pp. 8vo. $10.00

DUSSAUCE. - A General Treatise on the Manufacture of Vinegar:

Theoretical and Practical. Comprising the various Methods, by the Slow and the Quick Processes, with Alcohol, Wine, Grain, Malt, Cider, Molasses, and Beets; as well as the Fabrication of Wood Vinegar, etc., etc. By Prof. H. Dussauce. 8vo. $5.00

DUSSAUCE. - Practical Treatise on the Fabrication of Matches, Gun Cotton, and Fulminating Powder.

By Professor H. Dussauce. 12mo. $3.00

DYER AND COLOR-MAKER'S COMPANION:

Containing upwards of two hundred Receipts for making Colors, on the most approved principles, for all the various styles and fabrics now in existence; with the Scouring Process, and plain Directions for Preparing, Washing-off, and Finishing the Goods. 12mo. $1.25

EDWARDS. - A Catechism of the Marine Steam-Engine,

For the use of Engineers, Firemen, and Mechanics. A Practical Work for Practical Men. By Emory Edwards, Mechanical Engineer. Illustrated by sixty-three Engravings, including examples of the most modern Engines. Third edition, thoroughly revised, with much additional matter. 12mo. 414 pages $2.00

EDWARDS. - Modern American Locomotive Engines,

Their Design, Construction and Management. By Emory Edwards. Illustrated 12mo. $2.00

EDWARDS. - Modern American Marine Engines, Boilers, and Screw Propellers,

Their Design and Construction. Showing the Present Practice of the most Eminent Engineers and Marine Engine Builders in the United States. Illustrated by 30 large and elaborate plates. 4to. $5.00

EDWARDS. - The Practical Steam Engineer's Guide

In the Design, Construction, and Management of American Stationary, Portable, and Steam Fire Engines, Steam Pumps, Boilers, Injectors, Governors, Indicators, Pistons and Rings, Safety Valves and Steam Gauges. For the use of Engineers, Firemen, and Steam Users. By Emory Edwards. Illustrated by 119 engravings. 420 pages. 12mo. $2.50

ELDER. - Conversations on the Principal Subjects of Political Economy.

By Dr. William Elder. 8vo. $2.50

ELDER. - Questions of the Day,