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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 Kainz Motor

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

The Painting of Machinery

Portable Forge

Horo--Kilometric Meter for Carriages

Gelatine Reliefs

A General Survey of Foreign Trade

Soldering Aluminium

On Cerium

By W. Marckwald

The Progress of Seismology during the Nineteenth Century

By Charles Davison

In the Land of the Eskimo

Sanitary Provisions in the Roman Colony at Lincoln, England

Need of a Great Telescope in the Southern Hemisphere

Inert Gases in the Earth's Atmosphere

The Glasgow International Exhibition, 1901

Animal Diseases and Animal Food

By D. E. Salmon

The American Red-Faced or Short-Tailed ape

Packwood Turned into Coal

Tinted Plaster Casts

The Osmium Lamp

Artificial Silk

A Balloon Voyage across the Baltic Sea

Selected Formulæ

The Trolley Age

By Albert L. Johnson

The Physiological Effects of the Modern Developer

Trade Suggestions from United States Consuls


Trade Notes and Receipts


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    April 27, 1901

    20% Sitewide for President's Day