[Cylinders, Pistons, and Valves.]

[Air Pump and Condenser.]

[Pumps, Cocks, and Pipes.]

[Details of the Screw and Screw Shaft.]

[Details of the Paddles and Paddle Shaft.]

[The Locomotive Engine.]

[CHAP. IX.--STEAM NAVIGATION.]

[Resistance of Vessels in Water.]

[Experiments on the Resistance of Vessels.]

[Influence of the size of Vessels upon their Speed.]