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Features

New Cab

Could a Hostile Fleet Bombard New York ?

Science Teaching in Schools

A Chance for Inventors.--The $5,000 Car

Traveling Flies

The De Bay Propeller

French Pill Printing Machine

New Portable Oven

Hens' Wire Nests

The First Inventor of the Steam Gauge

New Beer Faucet

The American Science Association

Engineering Inventions

Double Treadle Attachment

Miscellaneous Inventions

Improvement in Billiard Tables

Seals

By A. W. Roberts

Benzole

Mechanical Inventions

Count Louis Francois De Pourtales

Reasonable Diligence

The Location of the Lick Observatory

The Causes of Terrestrial Magnetism

Departments

  • Departments

    Correspondence

  • Recent Inventions

  • Business and Personal

  • Index of Inventions

  • Notes and Queries

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September 25, 1880

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