Features
Making Farms Out of Deserts
Why We Must Resort to Irrigation, and How We Are Doing So
Gasoline from Natural Gas
Testing Paper by Tearing, The Electrified Blackboard for the Technical Classroom and more
Exploiting the Inventor--I
How the Unscrupulous Patent Attorney Works Upon the Purse of His Client
The Electric Railroad Over the Rockies
Completion of an Additional Link in the St. Paul's Ambitious Project
Piercing New Zealand's Mountain Barrier
The Wrecking Derrick and a Concrete Job, Our Instincts have Birthdays, and more
From the Mountains of Montana to the Tetons of Wyoming
Strolls Through a Region Whose Scenic Beauties Are Menaced by the Mailed Fist of Commercialism
From Boneyard to Shipyard
The How and Why of California's New Ship-Building Center at Oakland
Making Wax Dummies for Fashion Displays, Some Novel Uses for the Tattooing Needle
A Botanical Romance
Departments
- Departments
Correspondence - April 3, 1920
Inventions New and Interesting - April 3, 1920
Recently Patented Inventions - April 3, 1920
New Books, Etc. - April 3, 1920