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The Field Columbian Museum

Searchlight Signaling at the Pan-American Exposition

from the Electric Tower of the Exposition to the Observation Tower at Niagara

By Obrin E. Dunlap.

Contemporary Electrical Science

The Painting of Machinery

Water-Softening Process at the Fulham Municipal Electric Supply Works, London

The Kainz Motor

Gelatine Reliefs

Horo--Kilometric Meter for Carriages

Portable Forge

A General Survey of Foreign Trade

Soldering Aluminium

On Cerium

By W. Marckwald

In the Land of the Eskimo

The Progress of Seismology during the Nineteenth Century

By Charles Davison

Inert Gases in the Earth's Atmosphere

Sanitary Provisions in the Roman Colony at Lincoln, England

Need of a Great Telescope in the Southern Hemisphere

The Glasgow International Exhibition, 1901

Animal Diseases and Animal Food

By D. E. Salmon

Packwood Turned into Coal

The American Red-Faced or Short-Tailed ape

Tinted Plaster Casts

A Balloon Voyage across the Baltic Sea

Artificial Silk

The Osmium Lamp

The Physiological Effects of the Modern Developer

The Trolley Age

By Albert L. Johnson

Selected Formulæ

Trade Suggestions from United States Consuls


Trade Notes and Receipts


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