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The Paris Exhibition

Reapers and Mowers at the Paris Exposition

The Phonograph Wins a Victory

The Problem of Unsinkable Ships

Edison's Micro-Tasimeter

Good Work from Cheap Patents

Collmann's Valve Gear

An Ether Ice-Making Machine

Improved Shoe Brush

Hughes' Microphone an Alleged Piracy


The Trichinæ in Shad

By John Michels

Carr's Improved Dredger

Improved Hot Air Furnace

Birds of Paradise

M. Trouve's New Telephone Improvements

Plant Mind

A Novel Chain Pump

Letters from the Paris Exhibition

Fence Economy

Catalpa Wood

Communications Received


  • Departments

    Business and Personal

  • New Books and Publications

  • Notes and Queries

  • Patents

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June 22, 1878

Science for the Modern World