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Features

Missing Links of the Gobi Desert

How a Handful of Fossils Has Filled a Former Gap in the Evolution Tree

By William K. Gregory

The Next Great Comet Is About Due

New Knowledge May Enable Scientists This Time to Fathom Its Secrets

By Henry Norris Russell

Fishes that Can Shock You

Electric Rays, Electric Eels, Electric Catfish and Some Other Fishes Deliver Strong Electric Shocks. How the Electricity Is Generated Is Not Yet Thoroughly Established

By David Starr Jordan

Uncle Sam Spendthrift—IX

Neglect Causes 200 Million Dollars Yearly Loss by Soil Erosion

By Hugh Hammond Bennett

The Month in Medical Science, April 1927

A Review and Commentary on Progress in the Medical and Surgical Field

By Morris Fishbein

"Hello, London—New York Calling"

" . . . Marks the Beginning of a New Epoch in Communication Between Two Hemispheres"

By Orrin E. Dunlap Jr.

"Metropolis"—A 'Movie' Forecast of the Future

Transporting a River Over Mountains

Tapped at a Point 260 Miles From Los Angeles, the Colorado River Is to Furnish Part of the Water Supply for That City

By Edgar Lloyd Hampton

Inventors Who Have Achieved Commercial Success, April 1927

The Fourth Interview of this Series is With the Inventor Who Has Perfected the Production of Animated Cartoons

By Milton Wright

Twentieth-Century Railroad Building

Thirty-nine Million Dollars Spent to Improve the Railroad Connection Between Oregon and California. Natron Cut-off Reduces Grades and Curvature, and Opens Up a Great Area of Undeveloped Country

The Reconstructed Battleship "Texas"

Blisters Below Water, Heavier Deck Armor, Improved Boilers, Tripod Masts and Larger Cruising Radius, Render the "Texas" a Far More Efficient Ship

By J. Bernard Walker

The Escape of "Old Ironsides"

Was the Famous Ship Saved by the Threefold Means of Towing by the Ship's Boats, Kedge Anchors, and Extemporized Canvas Sea Anchors?

By William Allen

Sensitive Relays Without Magnets

An Unusual Adhesive Force Between Partial Conductors of Electricity Makes Possible These Unique Relays

By Alfred Gradenwitz

Airplane "Eyes" Used for Map Making

Huge Lifting Magnets in Industry

Our Railway Accidents Analyzed

Increase in Safety Is Due to Extreme Care

From the Scrap-book of Science—Camera Shots of Scientific Happenings, April 1927

In the World of Chemistry, April 1927

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

By D. H. Killeffer

Applied Science for the Amateur, April 1927

A department devoted to the presentation of useful ideas wherein will be found material of practical value for those who are mechanically inclined

By A. P. Peck

Departments

  • Our Point of View, April 1927

  • Departments

    Novel Devices for the Shop and the Home, April 1927

  • The Scientific American Digest, April 1927

  • Learning to use our Wings, April 1927

  • Radio Notes, April 1927

  • In the Editor's Mail, April 1927

  • The Heavens in April 1927

  • Commercial Property News, April 1927

  • Patents Recently Issued, April 1927

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April 1927

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