Chapter II: ENGINEERING AND MECHANICS.--The Windmill.--By JAMES

W. HILL.--The Eclipse wind.--Other wind mills.--Their operation,
use, etc.

The Pneumatic Dynamite Gun.--With engraving of pneumatic
dynamite gun torpedo vessel.

Rope Pulley Friction Brake.--3 figures.

Wire Rope Towage.--Treating of the system of towage by hauling
in a submerged wire rope as used on the River Rhine, boats
employed, etc.--With engraving of wire rope tug boat.

Improved Hay Rope Machine.--With engraving.

The Anglesea Bridge, Cork.--With engraving.

Portable Railways.--By M DECAUVILLE.--Narrow gauge roads
in Great Britain.--M. Decauvilie's system.--Railways used at the
Panama Canal, in Tunis, etc.