Travels among the Great Andes of the Equator

The Maya Race in Central America

The Bamboo

The Genus Bambusa and its Allies

Scarlet Runner Beans

The Forests of California

The Cheapest Nitrogen and Phosphate

How are Nitrogen and Phosphoric Acid to be Obtained in the Cheapest Way?

Apparatus for Spraying Grapevines

Sweet Potato Culture

The Sewage Farms of Berlin

On Peroxide of Hydrogen: A Physical-Medical Research

A Giant Lighthouse Lens—Quadrilateral Arrangement

The German Emperor and his Navy

The Work of Removing the Rocks at the Iron Gates on the River Danube

A Hand Telescope for Stadia Work

Parkinson's Oxygen Gas Process

Metals at High Temperatures

Experiments upon Surface Films

Talc—French Chalk

Patents!

Useful Engineering Books