Improved Windmill, Improved Lathe Arbor Tightener, and more

How Shall We Burn Coal Most Economically

Water Supply of Towns

Silver Mining in the Great Basin

Editorial Summary

Varying Ideas of Model Makers

Batcheller's Hand Planter

Sill's Stamp Affixer

Converse's Improvement in Pocket Fire-Arms

Recent American and Foreign Patents

Science Familiarly Illustrated

Steel-Headed Rails

New Publications

Answers to Correspondents

Having an Object and Sticking to it

Crossing the Water--Ferries, Tunnels, and Bridges

The Arcade Railway

The Recoil of Guns--Action and Reaction Not Equal

Patent Claims

Issued from the U. S. Patent Office

Devices for Elevating Liquids