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Features

Vertical Transportation

The Blood of All Races

Final Lessons of the German American War Game

Vulcanized Timber in England

“Callitypy”

The British Battleship Construction Programme for 1903

By Our London Correspondent

Some Modern Appliances for Life Saving at Fires

Remarkable Diversion of Niagara's Waters

By Orrin E. Dunlap

Electric Track Welding

By Waldon Fawcett

Pupin and Jentsch on Trans-Oceanic Telephony

The Advantages of in-Turning Screws on Warships

Volcanic Dust Falls in Georgia

Narragansett-the Largest of Tank Ships

News from the British Antarctic Expedition-- A New Record

A New Star

Further Curie Experiments with Radium

The Selden Patent and the Automobile Trust

The New Buffalo Harbor Breakwater

Photographic Experiment with Nature's Lenses

By W. F. Watson

Discovery of the Tomb of Thothmes IV

Next Week's Special Automobile and Yachting Number

Diaphragm Meter and Exerciser

Women Inventors

Automatic Toy

Patent Department

Staple Puller

Safety Heel for Footwear

Business and Personal Wants

Read this Column Carefully.-You wili find inquiries for certain classes of articles numbered in consecutive order. If you manufacture these goods write us at once and we will send you the name and address of the party desiring the information. In every case it is necessary to give the number of the inquiry. Munn&Co

Railway Improvements

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    Index of Inventions - April 4, 1903

  • Miscellaneous - April 4, 1903

  • Recently Patented Inventions - April 4, 1903

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April 04, 1903

Music's Mysterious Power

Music's Mysterious Power

Emotional. Cognitive. Therapeutic.