The Naval Battle of Yalu

The Oil-Burning Locomotive Petrolia

A Typical Gold Mine

Machinery

The Invention of Water Gas

Manufacture of Carbon Bisulphide at Zalatna, Hungary

The Chemical Pulp Process

Amateur Chronophotography

Holy Trinity Church, Wilmington, Del

Theater Fire Catastrophes and their Prevention

Manufacture of Metals of the Alkalies and Alkaline Earths by Electrolysis

Photometry

Lecture III

Fractional Distillation

A New Extraction Apparatus

A New Sulphureted Hydrogen Apparatus

Testing Pyrites

Method of Testing for Albuminuria

Sketches in India

The Bronze Age in Europe

Geologies and Deluges

Patents!