"The Heavens Declare the Glory of God"
How a Group of Enthusiasts Learned to Make Telescopes and Became Amateur Astronomers
Volume 133, Issue 5
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Features
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