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"Reliance and Columbia"

We Need Fewer Doctors

The First Iron Sailing Vessel

What to Abolish from Warships

Our Enormous Exports

The Metric System

The Proposed Brooklyn Bridge Terminal Station

Chimney Draft

By Egbert P. Watson

Trade-Marks in the Philippines

A Bell-Buoy Operated by Tide Motor

Dovetailing Machine

Air Cooling Apparatus

Long-Distance High-Tension Transmission of Power in California

By Hamilton Wright

The Crossley Reflecting Telescope and its New Mounting

The Trade in Wild Animals

By Harold J. Shephtone

Have the Lower Animals Other Senses Than Ours?

By J. Carter Beard

Artemiev's Electrical Coat of Mail

By Emile Guarini

A New Electrical Steering Gear

Business and Personal Wants


  • Departments

    Science Notes - May 16, 1903

  • Correspondence - May 16, 1903

  • Recently Patented Inventions - May 16, 1903

  • Notes and Queries - May 16, 1903

  • New Books, Etc. - May 16, 1903

  • Index of Inventions - May 16, 1903

  • Patents - May 16, 1903

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