Modern Methods of Composing Type
An Important Step in the Production of Printed Matter
Features
Contact Electrification and the Electric Current
Historical Notes and Comments on the Various Theories
Large Grained Metals and the Ball Test
Mastication and Food Utilization
Preserving “Caste” in English Hospitals
The World's Yield of Iron and Coal
Titanium and its Effects on Steel
Some of the Results Secured by this New Oxidizing Agent
Making Natural History Popular
Attractive Museum Groups of Our Common Pond Reptiles
A Great Commercial Railway
The Passing of the Bertillon System of Identification
An Elaborate System of Measurements that has been Displaced by Simpler Methods
Curious Cures
Family Resemblances
Mortar
Diet under War Conditions
Man's Development Illustrated
Busts Depict the Earliest Known Human Beings
Flour Moths and Army Rations
Newly Discovered Enemies of the Human Race
A Gas Engine Economy
Films may Help in the Selection of an Occupation
Research and Progress in American Manufacture
What the Investigator Has Done and Can Do for Industries
