Scientific American Magazine Vol 20 Issue 18

Scientific American Magazine

Volume 20, Issue 18

You are currently logged out. Please sign in to download the issue PDF.

Features

Improved Sectional Tubular Boiler, Destruction of Trees by Street Gas

Explosive Compounds for Engineering Purposes

Age of Trees and Size of Timber

Beet Root Sugar

Hendricks' Patent Gate Catch

Perkins and House's Non-Explosive Kerosene Lamp

The Philosophy of Alum and Dry Plaster Filling for Fire-Proof Safes

On the Technical Applications of Dialysis

Charles A. Joy

A Long Required Need Supplied

The Postal Telegraph Bill

The Transits of Venus in 1874 and 1882

The New Examiner-In-Chief

Scientific and Mechanical Associations

The New Commissioner of Patents

Velocipede Notes

Galvanized Iron Water Pipes

Patent Cases in Court

Manufacturing, Mining, and Railroad Item

Editorial Summary

Official List of Patents

Issued by the United States Patent Office

Recent American and Foreign Patents

Applications for the Extension of Patents

European Patents

Patent Offices

Departments

Answers to Correspondence

Business and Personal