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The Snap Flask

The Vienna Exposition

The Science Record for 1873

Annual Report of the Commissioner of Patents

Three Fearful Boiler Explosions in One Day

A Blow to the Trades' Unions

An Electrical Tower

Matthew F. Maury

Departure of Professor Tyndall

An Old Friend Gone

Floating Station for Floating Fire Engines

Improved Evaporator

Novel and Cheap Railways in Portugal

Improved Pail Pump

Engineering Notes

Automatic Car Coupling

Improved Road Scraper

Railway Progress in 1872

Railway Timber Bridge


Recent American and Foreign Patents

Patent Office Decisions

Answers to Correspondents

Communications Received


  • Departments


  • New Books and Publications

  • Notes and Queries

  • Business and Personal

  • Index of Inventions

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February 22, 1873

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