BULLOCK. - The Rudiments of Architecture and Building.

For the use of Architects, Builders, Draughtsmen, Machinists, Engineers and Mechanics. Edited by John Bullock author of "The American Cottage Builder." Illustrated by 250 Engravings. 8vo. $3.50

BURGH. - Practical Rules for the Proportions of Modern Engines and Boilers for Land and Marine Purposes.

By N.P. Burgh, Engineer. 12mo. $1.50

BURNS. - The American Woolen Manufacturer:

A Practical Treatise on the Manufacture of Woolens, in two parts. Part First gives full and explicit instructions upon Drafting, Cross-Drawing, Combining Weaves, and the correct arrangement of Weights, Colors and Sizes of Yarns to produce any desired fabric. Illustrated with diagrams of various weavings, and twelve samples of cloth for explanation and practice. Part Second is fully supplied with extended Tables, Rules, Examples, Explanations, etc.; gives full and practical information, in detailed order, from the stock department to the market, of the proper selection and use of the various grades and staples of wool, with the admixture of waste, cotton and shoddy; and the proper application and economical use of the various oils, drugs, dye stuffs, soaps, belting, etc. Also, the most approved method for Calculating and Estimating the Cost of Goods, for all Wool, Wool Waste and Cotton and Cotton Warps. With Examples and Calculations on the Circular motions of Wheels, Pinions, Drums, Pulleys and Gears, how to speed them, etc. The two parts combined form a whole work on the American way of manufacturing more complete than any yet issued. By George C. Burns. 8vo.

BYLES. - Sophisms of Free Trade and Popular Political Economy Examined.

By a Barrister (Sir John Barnard Byles, Judge of Common Pleas). From the Ninth English Edition, as published by the Manchester Reciprocity Association. 12mo. $1.25

BOWMAN. - The Structure of the Wool Fibre in its Relation to the Use of Wool for Technical Purposes:

Being the substance, with additions, of Five Lectures, delivered at the request of the Council, to the members of the Bradford Technical College, and the Society of Dyers and Colorists. By F.H. Bowman, D. Sc., F.R.S.E., F.L.S. Illustrated by 32 engravings. 8vo. $6.50

BYRN. - The Complete Practical Distiller:

Comprising the most perfect and exact Theoretical and Practical Description of the Art of Distillation and Rectification; including all of the most recent improvements in distilling apparatus; instructions for preparing spirits from the numerous vegetables, fruits, etc; directions for the distillation and preparation of all kinds of brandies and other spirits, spirituous and other compounds, etc. By M. La Fayette Byrn, M.D. Eighth Edition. To which are added Practical Directions for Distilling, from the French of Th. Fling, Brewer and Distiller. 12mo.

BYRNE. - Hand-Book for the Artisan, Mechanic, and Engineer:

Comprising the Grinding and Sharpening of Cutting Tools, Abrasive Processes, Lapidary Work, Gem and Glass Engraving, Varnishing and Lackering, Apparatus, Materials and Processes for Grinding and

Polishing, etc. By Oliver Byrne. Illustrated by 185 wood engravings. 8vo. $5.00

BYRNE. - Pocket-Book for Railroad and Civil Engineers:

Containing New, Exact and Concise Methods for Laying out Railroad Curves, Switches, Frog Angles and Crossings; the Staking out of work; Levelling; the Calculation of Cuttings; Embankments; Earthwork, etc. By Oliver Byrne. 18mo., full bound, pocket-book form. $1.75

BYRNE. - The Practical Metal-Worker's Assistant:

Comprising Metallurgic Chemistry; the Arts of Working all Metals and Alloys; Forging of Iron and Steel; Hardening and Tempering; Melting and Mixing; Casting and Founding; Works in Sheet Metal; the Processes Dependent on the Ductility of the Metals; Soldering; and the most Improved Processes and Tools employed by Metal-Workers. With the Application of the Art of Electro-Metallurgy to Manufacturing Processes; collected from Original Sources, and from the works of Holtzapffel, Bergeron, Leupold, Plumier, Napier, Scoffern, Clay, Fairbairn and others. By Oliver Byrne. A new, revised and improved edition, to which is added an Appendix, containing The Manufacture of Russian Sheet-Iron. By John Percy, M.D., F.R.S. The Manufacture of Malleable Iron Castings, and Improvements in Bessemer Steel. By A.A. Fesquet, Chemist and Engineer. With over Six Hundred Engravings, Illustrating every Branch of the Subject. 8vo. $7.00

BYRNE. - The Practical Model Calculator:

For the Engineer, Mechanic, Manufacturer of Engine Work, Naval Architect, Miner and Millwright. By Oliver Byrne. 8vo., nearly 600 pages. $4.50

CABINET MAKER'S ALBUM OF FURNITURE:

Comprising a Collection of Designs for various Styles of Furniture. Illustrated by Forty-eight Large and Beautifully Engraved Plates. Oblong, 8vo. $3.50

CALLINGHAM. - Sign Writing and Glass Embossing:

A Complete Practical Illustrated Manual of the Art. By James Callingham. 12mo. $1.50

CAMPIN. - A Practical Treatise on Mechanical Engineering: Comprising Metallurgy, Moulding, Casting, Forging, Tools, Workshop Machinery, Mechanical Manipulation, Manufacture of Steam-Engines, etc. With an Appendix on the Analysis of Iron and Iron Ores. By Francis Campin, C.E. To which are added, Observations on the Construction of Steam Boilers, and Remarks upon Furnaces used for Smoke Prevention; with a Chapter on Explosions. By R. Armstrong, C.E., and John Bourne. Rules for Calculating the Change Wheels for Screws on a Turning Lathe, and for a Wheel-cutting Machine. By J. La Nicca. Management of Steel, Including Forging, Hardening, Tempering, Annealing, Shrinking and Expansion; and the Case-hardening of Iron. By G. Ede. 8vo. Illustrated with twenty-nine plates and 100 wood engravings. $5.00

CAREY. - A Memoir of Henry C. Carey.

By Dr. Wm. Elder. With a portrait. 8vo., cloth $.75