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Features

Improved Head-Rest, Savings Banks in England, and more

Henry Bessemer on His Process of Making Steel

Recent American Patents

Sales of Patents

Foreign Summary

The Cooper Union Night Schools

The Fair of the American Institute

A Radical Change in Sugar Making

Notes on the New Sloops of War

Special Notices

Kendall's Piston Packing

The United States and the French Exposition Universal of 1867

The Winooski and Algonquin Trial

Trifles

Patent Claims

Patent Agency Office

Departments

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    Correspondence

  • New Books and Publications

  • Notes and Queries

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Dwindling Supply. Increasing Demand.

Dwindling Supply. Increasing Demand.

Solving the Water Crisis