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A Review of the Physics of Light—III

By Silvanus P. Thompson*amp*apos;s

The Manufacture of Lithopone

An Economic and Hygienic Substitute for White Lead

By E. Lemaire

The Sixth Sense of the Bat

By Hiram Maxim*amp*apos;s

Combating the Dangers of Tropical Climates

The Resistant Powers of Temperate Races Not Equal to Acclimatization

By Robert Grimshaw

The Conservation of Snow

Its Dependence on Forests and Mountains

By J. E. Church

Pressure of Coal on Storage Bin Walls

The Difference Between Anthracite and Bituminous

The Story of Celluloid

How the Material is Manufactured, and Made into Useful Articles

Locomotive Boiler Flue Gas Analysis*

Simple Method of Finding the Weight of Gases and of Dividing the Boiler Efficiency Into Its Components

By Lawford H. Fry


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