Skip to main content


The Manufacture of a Pneumatic Tire

Modern Explosives

Motor Vehicles for Heavy Traffic

Apparatus for Filtering Air and Smoke

Actinium: A New Radio-Active Element

By A. Debierne

Trade Notes and Receipts

Selected Formulæ

Trade Suggestions from United States Consuls

A Universal Boring and Tapping Machine


Paints and Varnishes

By A. H. Sabin

Lister's Inclinometer Theodolite

Bubonic Plague in the Bible

Mason Bees

Grindelia Patens

Hypnotism in Medicine

Apparatus for Lighting and Extinguishing Gas from a Distance

The Gold Deposits of Cape Nome

By Charles G. Yale

New Books


Practical Conditions in the Application of Green Manures

Specific Gravity of the Human Body

By John C Packard


    Purchase To Read More

    Already purchased this issue? Sign In to Access
    Select Format
    May 12, 1900

    The Antidote to Anti-Intellectualism