
A Binocular Head Lens

A Binocular Head Lens

Lignite Producer-Gas Plants

A Novel Process of Reanimation

A New Projection System for Lectures

Improved Tele-Photography

A Transportable Searchlight

A Hand-Pressure Riveting Machine

The Electrolytic Production of Hydrogen and Oxygen for Welding Purposes

The use of Bronze Castings for Naval Purposes

Improved Methods in High-Speed Chrono-Photography

The Schlick Pallograph

The Improved Gruhn Telautograph

The Parsons Steam Turbine on German Warships

On a Process of Measuring Nervous Susceptibility

The Capillary Motor

A Leadless Sounding Apparatus

A Novel Process for using Blue Light as an Anæsthetic

A Gigantic Electric Shipyard Crane

A Novel Type of Hay Stacker

The Stolze Gas Turbine

A Novel Water Wheel

A New Form of Apparatus for the Electrolysis of Water

An Automatic Lamp Lighting and Extinguishing Device

The Janus Telephone System