"The Heavens Declare the Glory of God"

How a Group of Enthusiasts Learned to Make Telescopes and Became Amateur Astronomers

Tests Fail to Confirm Transmutation to Gold

A Report of the Scientific American Gold Test

Every Crime is Entrenched Behind a Lie

How the Lie Is Punctured and the Criminal Exposed Is Described in This Interview With the Noted Criminologist, Edward O. Heinrich

The Tragedy of the "Shenandoah"

The Wrecking of This Superb and Well-tried Ship by a Furious Thunderstorm

Fighting Disease With Aniline Dyes

Physicians Have Found a New Way to Reach and Combat Some Microbes

Nova Pictoris--A Temporary Star

Professor of Astronomy at Princeton University Research Associate of the Mount Wilson Observatory, California

Controlling a Million Horsepower

Why Hair Turns Gray

A Study of the Developing Hair Through the Microscope Reveals the Secrets of Color Production and Color Loss

An Invisible Police Alarm

Radio Is Proving Its Usefulness in the Form of a Powerful Weapon Against Criminals

The Progress of Medical Science--II

The Discovery of Insulin and the New Ductless Gland Therapy

The Amazingly Accurate Calendar System of the Maya Indians

With the Aid of a Remarkable Mathematical System These Early Americans Determined the Equinoxes and Closely Predicted Eclipses of the Sun and Moon

Another Victory for Oil Equipment

A Diesel Engine Installation With Greatest Flexibility and Ease of Operation, in a Most Demanding Service

Linking Mexico and California

Unbroken Rail Journey from San Francisco to Mexico City, Will Soon Be Possible

Have We Too Many Traffic Laws?

The Difficulties of Enforcement from the Traffic Officer's Point of View

What is a Gynandromorph?

How One Insect Combining Both Sexes Resulted from an Accident to Its Sex Chromosomes

The Short-lived, Eight-foot Flower of Sumatra

Photographs Courtesy of Gardener's Chronicle

News for Inventors, November 1925

A Department of Facts and Notes of Interest to Patentees and to Owners of Patent and Trademark Rights

The Heavens in November 1925