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Scientific American Magazine Vol 67 Issue 11

Scientific American Magazine

Volume 67, Issue 11

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Features

Opportunities for Invention

Recent Armor Plate Trials

A Convenient Ribbon Holder

Experiments with Soap Bubbles

An Improved Window Screen

Old Clocks

Lighthouses, Lightships, and Buoys

Manufacture of Felt Hats

The Columbia

The Otocyon

Departments

Correspondence- September 10, 1892

Notes & Queries- September 10, 1892

Business and Personal- September 10, 1892

Recently Patented Inventions- September 10, 1892

Index of Inventions- September 10, 1892

To Inventors- September 10, 1892