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The Jungfrau Railway

A Thermal Regulator

A Bicycle Clock

Model of an Old Vessel

A Trans-Japan Canal

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

Cocoanut Cultivation in Samoa

Selected Formulæ

Electrical Notes

Miscellaneous Notes

Engineering Notes

The East Frontier of Dahomey


Productive Forces of Cuba

Bicycling in Germany and France



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    May 15, 1897