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Attractive Suburban Residences

The Problem of Healthy Water

Printing Ink

George Stephenson

Concentrating or Storing up Electricity

Two Recent Boiler Explosions

Novel Device for Watering Animals

Velocipede Carriage

Steam Tugboat Explosion

By S. N. Hartwell

Miscellaneous Inventions

Mechanical Inventions

New Fastener for Grain-Car Doors

Storing of Electricity

The Slender Dragon Fly

Agricultural Inventions

Natural History Notes


  • Departments

    Recent Inventions

  • New Inventions

  • Correspondence

  • Business and Personal

  • Index of Inventions

  • Notes and Queries

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Bacterial Balancing Act

Bacterial Balancing Act

Our First Healthcare Network