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An Invention Wanted for Australia

New Cement Wanted

Howell's Homogeneous Metal

Heat-Conducting Power of Metals

Australian Quartz Mining--Smelting

Speed of Circular Saws

Great Earthquake

Zink's Cap for Trace Fastening

Pfleghar's Punch and Awl

Patent Extension Cases

New Milk Cooler

Enlargement and Improvement of the Scientific American

Wanted by Government!

Telegraphs in the West Indies

Science Honoring Princes

Advice about Lightning

Making Perfume

A Good Story

Improved Pump


Inventors, Millwrights, Farmers and Manufacturers

Science of Things Familiar

The Patent Office


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    Notes and Queries - May 7, 1859

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May 07, 1859

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