Elevated Railway for Broadway, Wire Rigging

Notes on New Discoveries and New Applications of Science

Rowe's Pump Plunger

Our Circulation

The Way to Prevent Railroad Accidents

Tyndall and the Climate of California

Earth Currents and the Atlantic Cable

Nystrom on Work and Power

The Explosion of the Arrow's Boilers

Market for the Month

Recent American Patents

Miscellaneous Summary

Patent Claims

Issued from the United States Patent-Office

Pantent Agency Office

Rice & Evered's Tube Sheet Cutter