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A Sailing Railway Car

Report of the Director of the Central Park Museum, 1878

Every Man His Own Keely Motor

How Fast Can You Think?

Progress at the Patent Office

The Intensity of Telephonic Sounds

Color Blindness

Sea Water as a Beverage

Slotting Machine

Improved Circulating Generator for Steam Boilers

Improved Sewer Gas Check Valve for Stationary Wash Basins, Etc


Improved Nut Lock

Some New Workshop Appliances

New Investigations on Gallium

Improved Dovetailing Machine

Centrifugal Pumping Engine

The Victoria Regia

Redier's New Registering Thermometer

The Horn Bug

By C. V. Riley

Astronomical Notes

By Berlin H. Wright

The Philadelphia Lawn Mowers

Communications Received

The Scientific American


  • Departments

    Business and Personal

  • Notes and Queries

  • Patents

  • Index

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April 20, 1878

Of Shamrocks and Science

Happy St. Patrick’s Day