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Improved Broom-Handle Lathe

Milling and the Dress of Stones

The “Dunderberg”

The Pneumatic Post in Operation

Miscellaneous Summary

The Sources of Springs and Rivers

By James B. Tibbits

Valuable Receipts

Whitworth's Improved Shell

Dewies' Patent Oil Cup

Abuses in Public Conveyances

Cultivate Flax

What Can be Done for Inventors--Advice Gratis and Advice for Pay

Harbor Defense--A New Use for Petroleum

Unsafe Railroad Bridges

Sleepers for Railways

“How Not to Do Itrdquo;


Recent American Patents

Discoveries and Inventions Abroad

The Waste of Coal

Patent Claims

Issued from the United States Patent Office


  • Departments


  • Notes and Queries

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