Production of Coal in 1903

Endurance of Warship Machinery in the Russo-Japanese War

The Ultimate Development of the Gas Engine

New York Meeting of the Society of Chemical Industry

A Test of the Doenvig Globe

Launch of the First Turbine-Propelled Liner for Transatlantic Traffic

The Current Supplement

The Jungner Alkaline Accumulator

A Record Transcontinental Automobile Trip

The Malcotti Telecryptograph for Telegraphing Upon Telephone Lines

A Trolley for Heavy Multiple-Unit Electric Trains

Coffee and Coffee Culture

Modern Locomotives at the St. Louis Exposition

By the St. Louis Correspondent of the Scientific American

The Dino Collection of Historic Armor

Pump Diaphragm

Ruling Pen

Wire-Reeling Apparatus

Oddities in Invention

Business and Personal Wants