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Features

Shipbuilding in the United States

Hoist with Its Own Petard

The Humanitarian Side of Vivisection

Panama Canal Locks to Be Widened

Artificial Honey

The Scientific American Trophy and Medal

The Crocco and Ricaldoni Hydroplane Boat

Combined Dam and Power Plant

The Long Distance Balloon Races from St. Louis

A Convenient Pocket Transit

By A. Frederick Collins

Natural and Artificial Mixed Colonies of Ants

By Louis I. Dublin

Folding Ironing Table

An Interesting Type of Cow Milker

Extension Table

Attachment for Traction-Operated Implements

Departments

  • Letters

    Correspondence - November 2, 1907

  • Departments

    The Heavens in November 1907

  • Recently Patented Inventions - November 2, 1907

  • Index of Inventions - November 2, 1907

  • Patents - November 2, 1907

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Why We Need Our Zzzs

Why We Need Our Zzzs

Vital for Memory, Mood and More