Features
The Manufacture of Lithopone
An Economic and Hygienic Substitute for White Lead
The Sixth Sense of the Bat
Combating the Dangers of Tropical Climates
The Resistant Powers of Temperate Races Not Equal to Acclimatization
The Conservation of Snow
Its Dependence on Forests and Mountains
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
