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SA Supplements Vol 51 Issue 1321supp

SA Supplements

Volume 51, Issue 1321supp

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Features

The Field Columbian Museum

Searchlight Signaling at the Pan-American Exposition

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

Obrin E. Dunlap.

Contemporary Electrical Science

The Kainz Motor

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

The Painting of Machinery

Horo--Kilometric Meter for Carriages

Gelatine Reliefs

Portable Forge

A General Survey of Foreign Trade

Soldering Aluminium

On Cerium

W. Marckwald

In the Land of the Eskimo

The Progress of Seismology during the Nineteenth Century

Charles Davison

Inert Gases in the Earth's Atmosphere

Need of a Great Telescope in the Southern Hemisphere

Sanitary Provisions in the Roman Colony at Lincoln, England

The Glasgow International Exhibition, 1901

Animal Diseases and Animal Food

D. E. Salmon

Packwood Turned into Coal

The American Red-Faced or Short-Tailed ape

Tinted Plaster Casts

Artificial Silk

A Balloon Voyage across the Baltic Sea

The Osmium Lamp

The Physiological Effects of the Modern Developer

Selected Formulæ

The Trolley Age

Albert L. Johnson

Trade Suggestions from United States Consuls

Patents!

Trade Notes and Receipts