Horizontal Engine with Proell Valve Gear

Metallic Defenses of the Steel Works of the United States

Test Recording Apparatus

Description of An Autographic Test Recording Apparatus

Solid Emery Wheels

Charneau's Heat Recuperator

The Russian Silk Loom

Machine for Covering Cords

Hilder and Scott's Metal Sorting Machine

Segon's Apparatus for Raising Water

A Cheap Printing Press

The Manufacture of Fire-Brick at Mount Savage, Maryland

Radii of Curvature Geometrically Determined

The Photometer

Explanation of the Maxwell Electromagnetic Theory of Light

Polarized Light

Application of Electricity to the Study of Spontaneous Motion in Capillary Tubes

Fusion by Electricity

The Origin of the Red Glows

Fungi Inducing Decay in Timber

Bark Bread

The Composition of Air

Life at the Bottom of the Ocean