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Features

Improved Feed Water Heater and Purifier

The Black Silk Deception

A New Opportunity to Secure Foreign Trade.-- Scientific American Export Edition

Spirit Strings and Morbid Minds

The Accident to the Machinery of the Steamer Old Colony

Our Naval Necessities

The Transit of Mercury and the Inter-Mercurial Body

What are the Causes that Affect the Taste of Drinking Waters?

Communications

Our Simian Visitors

The Injector

Winterburn's Regulator for Oil Stove Wicks

Improves Farm Gate

Improved Differential Pressure Regulator

Fangs of Serpents

By C. Few Seiss

Waterspouts

Improved Spring Bed

Improved Grinding Mills

M. Victor Regnault

Machinery Vs. Manual Labor

Proposed Bridge Over the Thames

Bastard Patent Rights

Astronomical Notes - May 25, 1878

By Berlin H. Wright

Communications Received

Departments

  • Departments

    Notes and Queries - May 25, 1878

  • New Books and Publications

  • Business and Personal - May 25, 1878

  • Index of Inventions - May 25, 1878

  • Patents - May 25, 1878

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May 25, 1878

Beyond XX and XY

Biology. Identity. Equality.