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The Klondike Gold Fields

By H. K. Carroll

The British Association—Address in Geology

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

The Mount Etna Observatory

Explorations of the University of Pennsylvania in Babylonia

Aristolochia Goldieana

Edward Drinker Cope, Naturalist

Address by Sir John Evans

Some Electrical Sport

By James F. Hobart

Electric Traction at Paris

Lighthouse Progress, 1887–1897

Interdependency of Inventions

Selected Formulæ

Electrical Notes

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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