EASTON.—A Practical Treatise on Street or Horsepower Railways.

By Alexander Easton, C. E. Illustrated by 23 plates.
8vo., cloth. $2.00

ELDER.—Questions of the Day:

Economic and Social. By Dr. William Elder. 8vo. $3.00

FAIRBAIRN.—The Principles of Mechanism and Machinery of Transmission:

Comprising the Principles of Mechanism, Wheels, and Pulleys, Strength and Proportions of Shafts, Coupling of Shafts, and Engaging and Disengaging Gear. By Sir William Fairbairn, C. E., LL.D., F.R.S., F.G.S. Beautifully illustrated by over 150 wood-cuts. In one volume, 12mo. $2.50

FORSYTH.—Book of Designs for Headstones, Mural, and other Monuments:

Containing 78 Designs. By James Forsyth. With an Introduction by Charles Boutell, M. A. 4to., cloth. $5.00

GIBSON.—The American Dyer: