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The Copper Resources of the United States

By James Douglas

Improved Balancing Machine

Loss of the Steamer Bokhara

A New Thames Tunnel

The Theory and Practice of Tanning

By Walter J. Salomon

The Construction of Modern Breech-Loading Rifled Mortars

By A. H. Russell

Chlorine and Soda by Electrolysis

By E. Andreoli

The Epidemiology of Cholera

By G. Archie Stockwell

The Houses of Parliament

The Baobab

Oven on Wheels for Army Use

Photographing Mont Blanc Forty Miles Off

Hyacinths in Moss

A Scotch Money Box

To Blow Three Soap Bubbles one within Another

The Manufacture of Liquors and Preserves

By J. De Brevans

Abstract of Munroe's Lectures on Chemistry and Explosives

By Lieut.-Col. J. P. Farley

Chemical Arts in Bible Times

By H. Carrington Bolton

Useful Engineering Books

Patents!

Coloring Matters of the Vine Ampelochroic Acids

By A. Gautier

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