Skip to main content


Improved Duplex Safety Gun Lock

Compound Chair for Connecting Railroad Rails

Astronomical Effects of the Ocean Tides

Steam on the Farm

European Street Car Improvements

Nebraska Patent Laws

Carbonic Acid in the Soil

A Simple Method of Improving the Health of Cities

Eccentric Inventors

A Munificent Gift to Science

A New Mitrailleuse

The Ignition of Combustibles by Overheated Steam

Sound and Hearing

Telegraph Poles

Scientific and Practical Information

Improved Radial Drilling Machine

High Steam Gage and Low Water Register

Flexible Saw and Tooth Filing Apparatus

Decisions of the Courts

Recent American and Foreign Patents

Answers to Correspondents

Best Mode of Introducing New Inventions


  • Departments


  • Business and Personal

  • Notes and Queries

  • Index of Inventions

Purchase To Read More

Already purchased this issue? Sign In to Access
Select Format
Scroll To Top