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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

Manufacture of Beet Sugar

By Joseph Hirsh

Science Familiarly Illustrated

Answers to Correspondents

Recent American and Foreign Patents

Alexander's Lever Saw Set

Police Intelligence!--A Patent Agent in Trouble

Trial Trip of the Steam Ram Dunderberg


Permanence of Animal Types

Patent Claims

Patent Office Decisions

Extension Notices


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  • Business and Personal

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Dwindling Supply. Increasing Demand.

Dwindling Supply. Increasing Demand.

Solving the Water Crisis