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Features

Engines of H.M.S. Nelson

Mode of Subaqueous Excavation Driving Piles, Or Making Solid Foundations in Quicksands or Unstable Soils

By Charles Pontez

British Gun Tests

The Hudson River Tunnel

The Railroad Man's Shibboleth

An Iron Roof of Forty-Two Feet Span

The Large Electric Works of Paris

The Stores of the Louvre—The Hippodrome

Electrical Abstracts

Induction Machines

Transmission of Motion by Electricity

Improved Telephone Call

Physics without Apparatus

A New Photometer

Areothermic Balance for Determining the Density of Liquids

Some Recent Advances in Photography

The Gelatino Bromide Process

By Captain Abney

Ice and Iron

Progress of Industrial Chemistry

Brief Review of the Most Important Changes in the Industrial Applications of Chemistry Within the Last Few Years

By J. W. Mallet

Laws of Wisconsin Against Food Adulterations

The American Chemical Society

On the Chemical Composition of Pyroxy-Line and the Formula of Cellulose

Note on Some Effects Produced by the Immersion of Steel and Iron Wires in Acidulated Water

By D. E. Hughes

Hygrometric Properties of Charcoal

Analysis of Chian Turpentine

By G. W. Wigner

Notes on Cream of Tartar

By Alfred H. Allen

Organisms Found in Beer and Wort

By Emil Chr Hansen

Indian Corn

By Louisa Reed Stowell

A New Photo Emulsion

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