Volume 105, Issue 23
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Features
Hudson Maxim
A Noted Inventor of High Explosives
The Hydro-aeroplane
Some of the Latest Biplanes Which Have Been Fitted with Floats in Order to Make Soaring From the Water Possible
The Power of the Human Jaw
The Work We Do in Biting and Chewing
The Manufacture of Yeast
An Important Fermentation Industry
The Latest Photograph of the Planet Mars
Abstracts from Current Periodicals- December 2, 1911
Phases of Science as Other Editors See Them
Turning Duplicate Forms
Suggestions for the Workshop- December 2, 1911
Ingenious Expedients of Resourceful Mechanics
Bending a Brass Tube
Knife Made from a Hacksaw Blade
The First National Mine-Safety Demonstration
Study of a Real Mine Explosion