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The Liquefaction of Air

False Economy

Growth in Our Exports of American Locomotives

The Current Supplement

A Brief Review of Some Branches of the Work, Scientific and Practical, of the Health Department of the City of New York

Excavations at Branchid

Gun of New Type Successfully Tested

A Seal and Tag for Railroad Freight Cars

A Supporting Stand for Bicycles

An Improved Steam Boiler

The Fluorometer

The Riverside Drive Viaduct, New York

Medium and Small Independent Refrigerating Plants

Dredging for Gold

Habitual Attitudes of Animals Considered as a Department of Comparative Zoology

By J. Carter Beard

To Inventors - February 12, 1898


  • Letters

    Correspondence - February 12, 1898

  • Recommended

    New Books, Etc. - February 12, 1898

  • Departments

    Notes and Queries - February 12, 1898

  • Business and Personal - February 12, 1898

  • Recently Patented Inventions

  • Index of Inventions - February 12, 1898

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