Skip to main content


Improved Single-Needle Knitting Machine, Period of the Growth of Man

Editorial Correspondence

A New Theory of Chemistry--The Galvanic Battery Dissected, and Speculations Concerning Ozone

Editorial Summary

Meyer's Safety Saddle

Recent American and Foreign Patents

Manufacturing, Mining, and Railroad Items

Progress of the Pacific Railroad--The System Adopted for Laying the Track

Extension Notice

Answers to Correspondents

Science Familiarly Illustrated

White's Improved Monkey Wrench

American Institute Fair

The Largest Pair of Propeller Engines in the World

The Relative Economy of Anthracite and Bituminous Coal in Steam Boilers

Malleable Qualities of Lead

Official Report of Patents and Claims

New Publications

Pending Applications for Reissues


  • Departments


  • Business and Personal

  • Patents

Purchase To Read More

Already purchased this issue? Sign In to Access
Select Format
Scroll To Top