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Features

Holly's New Pumping Engine and Automatic Pressure Regulator

Steam on Common Roads

The Eclipse of the Sun, July 29, 1878

Artificial Indigo

The Discouragement of Invention

The Partition of Turkey

Not So Many Out of Work

Where Our Inventors Live

Progress of Labor Saving Machinery in the South

A New Working Glove

New Cotton Spooling Machine

New Corn Plow and Marker

Electro-Magnetic Burglar Alarm Safe

The Musical Mechanism of the Cincinnati Organ

Tin Shafting Cup

Electrical Indicator for Showing the Rotation of the Earth

By Geo. M. Hopkins

First Impressions of the Eclipse Observations

The Lechner Mining Machine

The Lyre Bird

New Bridge Over the Douro River, Portugal

Ices and Ice Creams

The Manufacture of India Rubber

Astronomical Notes

By Berlin H Wright

Departments

  • Departments

    Business and Personal

  • Notes and Queries

  • New Books and Publications

  • Index of Inventions

  • Patents

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Dwindling Supply. Increasing Demand.

Dwindling Supply. Increasing Demand.

Solving the Water Crisis