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Drilling and Pumping, Nitro-Glycerin

Night and Magnitude

Notes on New Discoveries and New Applications of Science

Gleanings from the Polytechnic Discussions

Sodium Dangerous--The Sea Set on Fire

Financial Break-Down in England

Food and Its Adulterations

Improved Facilities in Railroad Freights

Patent-Office Decisions

A Stubborn Engineering Job

Dembois's Culinary Vessel

The Limited Nature of Patents

How Fast Does the World Move

Exhaustion of British Coal Fields

Patent Claims

Issued From the U. S. Patent Office


  • Departments

    Our Special Correspondence

  • Notes and Queries

  • New Inventions

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