Grain Binder Attachment to Harvesters

Mining Schools and Colleges

Rights of Purchasers of Patented Articles

The Vienna Exposition--Appointment of a New Commissioner

Experiments on the Strength of Materials

The New Philadelphia Steamships

The New York Post Office

Modern Printing Machinery and Appliances--How a Daily Newspaper is Made

About Tea

Iron Bridge Construction

The Wonders of the Egg--IV

The Sigl Mitrailleuse

Scraper for Household Uses

Simple Hand Stamp

Rag Cutting Engine

New Steam Roller

Stevens Institute Lectures--Fluorescence

Decisions of the Courts

United States Circuit Court--Nineteenth District, California

Recent American and Foreign Patents - May 31, 1873

Answers to Correspondents - May 31, 1873

Copyrights

Communications Received - May 31, 1873