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Features

The Hudson River Tunnel

Use of Photography in Wood Engraving

Concrete Work at the Sea Ends of Mississippi Jetties

The Production of Bromine in the United States

Cold Climates in the Treatment of Consumption

England's Sources of Motive Power

Bad Water in Baltimore

Edison's Electrical Generator

Mechanical Inventions

Miscellaneous Inventions

French Horizontal Flour Mills

Carving Attachment for Lathes

Chlorophyl

Tortoise Shell

The Localization of Arsenic in the Brain

Recent Decisions Relating to Patents, Trade Marks, Etc.

A Suggestion to Advertisers

The Tyler Cartridge

Engineering Inventions

New Barber's Chair

New Recording Pocketbook

Some Recent American Patents

Decoys for Wild Fowl

The Tarsier

Agricultural Inventions

Communications Received

Departments

  • Departments

    Correspondence

  • New Books and Publications

  • Business and Personal

  • Notes and Queries

  • Index of Inventions

  • Patents

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