A Trip to the Bottom of the Sea

Hunting Coral and Studying the Living Beings of the Sea Floor In a Submarine Fairyland

Guesswork--or Science?

The Method By Which the Scientist Locates Distant Earthquake Sources Is Surprisingly Simple in Principle

Raising Caligula's Sunken Galleys

The Testimony of the Jades

The Failure to Locate the Source of the Jade Used by the Maya Indians Does Not Prove that the Mayan Civilization Was an Old World Importation

The Fondest Dreams of the Astronomer

Things He Hopes For But Seldom Realizes. A New, Giant Telescope Is His Next Hope

If House Flies Were as Big as Birds

The Education of a Parachute Jumper

Technique Is Important if One Is to Alight Safely After a Leap from a Speeding Plane

Uncle Sam, Spendthrift—III

Present "Grab-all-you-can" Policy in Oil Drilling Is Criminally Wasteful. Regulated Cooperative Drilling Is Necessary to Prevent a Future Oil Famine

Giant Floating Aircraft Bases

"Saratoga" and "Lexington" Are Unique in the History of Naval Construction

The Physics of Golf Balls

Science Could Show the Sporting Goods Manufacturers How to Make Better, Faster and More Elastic Golf Balls, Tennis Balls and Baseballs--A Challenge

Air--driven Sea Sled Has Shallow Draft

New Water Craft Will Travel 30 Miles Per Hour in Only Four Inches of Water

The Great Earth-Moon Catastrophe

Radio and the Black Sun

Invisible Waves Penetrate the Arctic Glow to Tell of Explorers' Historic Triumphs

The Latest Member of Our Textile Family

Rayon, Although Commercially Unknown Thirty-five Years Ago, Has Come Into General Use Today

Scientific Accuracy a Commercial Necessity

The Contour-Measuring Projector Aids Inspection of the Finished Product

Ancient Salt Mines of the Indians

In Nevada a Cave with Peculiar Markings Made by Man Has Turned Out to Be a Salt Mine of the Indians of Two Thousand Years Ago

The Automobile Accident Problem Analyzed

A Monster that Answers a Finger's Touch

From the Scrap-book of Science--Camera Shots of Scientific Happenings

A Treasure Island in the Pacific

Santa Catalina, Off the Coast of California, Is a Veritable Island of Silver

The Panama Canal Today

During the First Ten Years of Operation, the Earnings of the Canal, Excluding Interest Exceeded Expenses by Over Thirty-three Million Dollars,

Types of Modern Bridges

Paper Sculpture