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The Colony of Victoria

Pavilion of the United States of Venezuela at the Paris Exhibition

The Argentine Republic at the Exposition

Pavilion of the Republic of Salvador

Experiments upon the Transmission of Power by Compressed Air in Paris (Popp's System)

By Alexander B. W. Kennedy

On the Hardening and Tempering of Steel

By W. C. Roberts-Austen

Electric Windlass and Cranes at the Paris Exhibition

Improved Steam Hammer at the Paris Exhibition

Bracket Ferns

Discoveries in Egypt

A Simple Ureameter

By L. E. Sayre

Some Physiological Traits of the Solid-Stemmed Grasses, and Especially of Indian Corn (Maize)

By F. L. Stewart


Bromoform in Whooping Cough

Building Plans and Specifications

Useful Engineering Books

Arsenic in Wall Paper


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October 26, 1889

Science for the Modern World