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The Berryman Patent Feed Water Heater

A New System of Armor Plating Needed

Successful Progress of the Great Jetties

Unscientific Scientists

Confidentially, with Our Readers

A Remarkable and Disastrous Explosion

To Our Subscribers

Government Tests of Magazine Guns

The American Exhibit at the Paris Exposition

Utilizations of the Goose Quill

Radial Drilling Machine


The No. 10 Bolt Cutter and Nut Tapper

Fisher's Torpedo Guard

Improved Ore Crusher and Pulverizer

Chapell's Pipe Coupling

A Celebrated Short-Horned Cow

Boland's Improved Kneading Machine

The Reproduction of Musical Tones by Electro-Magnetism


  • Departments

    Notes and Queries

  • Business and Personal

  • Index of Inventions

  • Patents

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January 26, 1878

Of Shamrocks and Science

Happy St. Patrick’s Day