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Direct Connected Railway Generators

Contemporary Electrical Science

The Origin and Progress of Scientific Societies

Clay-Working Machinery at the Paris Exposition

The Paris Exposition of 1900

By Carl Hering

Selection and Management of an Automobile Vehicle

New Sewer Trench Steam Shovel

Elephant Hunting

The Great Sea Serpent of the Garden of Acclimatation

The November Meteors


The Reducing Action of Denitrifying Bacteria

By G. Ampola and C. Ulpiani

Decomposition of Nitric Ethers and the Relative Stability of Explosive Substances

A Pocket Chronophotographic Apparatus

The Linde Process of Manufacturing Liquid Air

New and Simple method of making Telescopic Objectives

By Edmund M. Tydeman

The Present Condition of the Indigo Industry

How the Pyramids were Built

Trade Suggestions from United States Consuls


Trade Notes and Receipts


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