Head Hunters of Burma

How England, at Considerable Cost and Peril, is Obtaining the Freedom of Thousands of Slaves from the Tribes in the Naga Hills

Muscles Built the Pyramids

Human Muscles are More Efficient than the Best Steam Engines. An Electrical Theory of Muscular Action

Motor-bus Transportation De Luxe

Luxurious Appointments Contribute to Traveler's Comfort

World Events from Flashing Sign

"How do they Know"

When Astronomers Talk of Galaxies of Stars 60,000,000,000,000,000,000 or More Miles Distant, How Have They Arrived at Such Stupendous Figures?

Evolution of the Human Eye

Will Man Eventually Lose One Eye A Cyclopean Race is Predicted by One Scientist?

Safety at Sea

American Ship "Malolo" Survives Terrific Collision

Nobility at Work

How Some of the "Noble" Gases Are Finding Valuable Applications in Industry

Building for the Ages

Built of Large-Size Stone, Bedded in Cement Mortar, St. John's Cathedral Should Be As Lasting As the Pyramids

Successful Inventors--XI

How a Piece a of String, Plus a Paper Bag and an Idea, Equaled a Nation-Wide Business

Conservation or Extinction?

How Two Creatures, Living at the Earth's Antipodes, Were Blotted Out of Existence by Human Greed

A Monumental Bridge

New York Will Soon Possess Another "World's Greatest" in the 3500-foot Suspension Bridge Across the Hudson River

A Simple Study in Optics

Recording the Soul of Piano Playing

What is New in Radio

Manufacturers Turn to the Light-Socket Receiver—Many Improved Devices

Life-boats Made Safer

Dutch Patents Cover New Type of Construction

New Lights for Old

A Little Light on a Dark Subject

On the Trail of the Molecule—II

What Makes Some Chimneys "Draw" Poorly, Boomerangs Soar, Rotor Ships Move and Golf Balls Curve? "Bernoulli's Principle" Explains It

From the Scrap-book of Science--Camera Shots of Scientific Events, November 1927

Culinary Inventions

Novelties for Preparing and Serving Foods

Industries from Atoms, November 1927

A Department Devoted to the Advancements Made in Industrial and Experimental Chemistry

Applied Science for the Amateur, November 1927

A Department Devoted To the Presentation of Useful Ideas, Material of Value To All Will Be Found Here

Strays from the Ether

A Monthly Review of the Progress Made In All Branches of Radio Communication