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Features

Fires-Causes and Prevention

One More Number

What is Light?

New Air Engine

Remarkable Eruption of Mauna Loa

Glass Spinning and Weaving

Automatic Balance Attachment for Valves

Improved Safety Nut

Tool for Driving and Clinching Nails

Improved Safety Valve

Apparatus for Removing Ice from Railroads

New Hand Power Band Saw

New Telegraph Insulator

Business Colleges

Packard's Business College

Miscellaneous Inventions

Amateur Mechanics

A Simple Single-Acting Steam Engine

The Hercules Beetle

Variegation of Leaves

By James Hogg

Chinese Women's Feet

Communications Received

Departments

  • Departments

    Recent Inventions

  • Correspondence

  • Business and Personal

  • Notes and Queries

  • Index of Inventions

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Why Do Facts Fail?

Why Do Facts Fail?

Deconstructing Denial