Improved Shutter, Rifled Artillery

Attraction

Foreign Summary

Weldless Tires and Circular Rolling

The Way Dry Goods are Sold in New York

Tyndall on Radiation

Award of Premiums at the American Institute Fair

Experiments on the Expansion of Steam

Hoover's Gum-Elastic Spring

Recent American Patents

Zirconium

The Value of Illustrations

Hydraulic Lifts for Warehouses

The Chemistry of the Bessemer Process

Patent Claims

Issued from the United States Patents-Office

Special Notices

The Fair of the American Institute

Patent Agency Office