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The Klondike Gold Fields

By H. K. Carroll

The Turanian or Aral Tiger in the Zoological Gardens at Berlin, Germany

The British Association—Address in Geology

The Mount Etna Observatory

Aristolochia Goldieana

Explorations of the University of Pennsylvania in Babylonia

Address by Sir John Evans

Edward Drinker Cope, Naturalist

Electric Traction at Paris

Some Electrical Sport

By James F. Hobart

Lighthouse Progress, 1887–1897

Interdependency of Inventions

Electrical Notes

Selected Formulæ

Engineering Notes

Hagenbeck's Panorama of a Northern Sea

The British Association—Address in Mathematics and Physics

Machine Moulded Wheels

Cuinat's Acetylene Gas Generator

Dr. Mount Bleyer's Treatment for Consumption by Electricity

By J. Mount Bleyer

The Influence of Light on the Skin

The Electric Light in Rheumatism



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    September 11, 1897

    20% Sitewide for President's Day