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Howell's Homogeneous Metal

An Invention Wanted for Australia

Australian Quartz Mining--Smelting

New Cement Wanted

Heat-Conducting Power of Metals

Speed of Circular Saws

Patent Extension Cases

Pfleghar's Punch and Awl

Zink's Cap for Trace Fastening

Great Earthquake

New Milk Cooler

Telegraphs in the West Indies

Wanted by Government!

Enlargement and Improvement of the Scientific American

Science Honoring Princes

Advice about Lightning

Making Perfume

Improved Pump

The Patent Office


Inventors, Millwrights, Farmers and Manufacturers

Science of Things Familiar

A Good Story


  • Departments

    Notes and Queries - May 7, 1859

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