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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

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

Harbor Defense--A New Use for Petroleum

Cultivate Flax

“How Not to Do Itrdquo;

Unsafe Railroad Bridges

Sleepers for Railways


Discoveries and Inventions Abroad

The Waste of Coal

Recent American Patents

Patent Claims

Issued from the United States Patent Office


  • Departments


  • Notes and Queries

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March 14, 1863