Scientific American Magazine

The Manufacture of Bessemer and Crucible Steel

The Pneumatic Sub--Aqueous Tube

The Cotton Manufacture--Weaving

Business and Manufacturing Items

Editorial Summary

The Boiler Explosion on Board the Lighter Enterprise

The Mechanical Equivalent of Heat

Science Familiarly Illustrated

Manufacture of Beet Sugar

Recent American and Foreign Patents

Answers to Correspondents

Police Intelligence!--A Patent Agent in Trouble

Alexander's Lever Saw Set

Caution

Trial Trip of the Steam Ram Dunderberg

Permanence of Animal Types

Patent Claims

Patent Office Decisions

Extension Notices

Correspondence

Business and Personal