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The Jungfrau Railway

A Thermal Regulator

A Bicycle Clock

A Trans-Japan Canal

Model of an Old Vessel

The Public Pier of Pauillac

The Electric Light in the Optical Lantern

By Cecil M. Hepworth

The Synchronograph

A New Method of Rapidly Transmitting Intelligence by the Alternating Current

By Albert Cushing Crehore and George Owen Squier


By Asa S. Kinney

Experiments upon Metabolism in the Human Body, Under the Direction of the United States Department of Agriculture

Selected Formulæ

Cocoanut Cultivation in Samoa

Electrical Notes

Engineering Notes

Miscellaneous Notes

The East Frontier of Dahomey


Productive Forces of Cuba


Bicycling in Germany and France


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