Features
Salt-rising Bread
Raising Dough With Newly Discovered Bacteria
A New Method of Educating Deaf Mutes
Left Side Steer and Center Control in Motor Cars
Guns for Submarines
A Weapon That Swings Below Decks During Submergence
The Tallest Office Building in the World
Erection of the Woolworth Building, New York
In the World of Molecules, Optical Illusions; Trust not Your Eye and more
What is Matter?
The Individual Molecule Revealed
An Automatic Sharpener on an Electric Meat Slicer, An Engine that will Run on Several Fuels and more
Chemical Balance and the Fire Waste Problem
Departments
- Letters
Correspondence - March 8, 1913
- Recommended
New Books, Etc. - March 8, 1913
- Departments
Inventions New and Interesting - March 8, 1913
Recently Patented Inventions - March 8, 1913
Notes and Queries - March 8, 1913
