Features
Modern Niter Beds
The Best Kind of Coal for a Factory
Some Things A Manufacturer Ought to know
Copper Plating
A Simple Alternating-Current Motor
How it Can be Built at Home
The Meaning of Millions
A New Idea for an Internal Combustion Engine
Starting Gasoline Engines
The Automatic Starting Device
Protecting Vines or Fruit Trees
An Automatic Device Used in France
Phosphorescent Bodies
Some New Researches
Migration of the Norwegian Lemming
The Strange Flight of a Rodent
The Rice Beer of the Japanese
How Sake Beer is Made
A Sterilizing Oven for Books
Hydraulic Mining in California
How the Debris is Impounded
The Myth of Malleable Glass
Formation of Mineral Veins.—II
The Magmatic and Meteoric Methods