Design For Sales

Industrial Design Promotes Profits . . . Not Mere Decoration . . . Built-in Appearance of Competency with Charm Expresses Machine Age . . . Quality Now Comes with Quantity . . . Competition is the Driving Force...

Twins

The 200-inch Telescope Mirror Disk Under Initial Work

Old Problem—New Progress

How a Century-old Obstacle Has Been Avoided in Dealing with the Astronomer's "Problem of Three Bodies" . . . Special Problem Just Solve

Rail Freight's Modern Tempo

Freight Train Schedules Faster, Research Improves Cars, Shipments Protected, Larger Car Loads, Rail Service to Customer's Door

Radium—Nature's Oddest Child

Strange Experiments . . . Only One Chemist Survived . . . A Little Mistake that Cost $35,000, an Explosion, and a Sneeze that Cost $13,500

Pyramid Temple

The Most Spectacular Discovery of Archeological Specimens in Original Position Ever Made in the New World . . . The Jaguar Throne of Chichen Itzá

The Endocrine Brain

Hormones from the Ductless Glands, Problem of the Pituitary, Giants and Dwarfs, Thyroid Hormone for Stout People, Made a Rooster Broody

The Persistence Of Life

A. Russell Bond