Dr. Albert Einstein,
Originator of the Special and General Theories of Relativity
Einstein’s Theories of Relativity and Gravitation
A SELECTION OF MATERIAL FROM THE ESSAYS SUBMITTED IN THE COMPETITION FOR THE EUGENE HIGGINS PRIZE OF $5,000
COMPILED AND EDITED,
AND INTRODUCTORY MATTER SUPPLIED
BY
J. MALCOLM BIRD,
Associate Editor, Scientific American
NEW YORK
SCIENTIFIC AMERICAN PUBLISHING CO.,
MUNN & CO.
1921
Copyright 1921
by
Scientific American Publishing Company
All rights reserved
Great Britain copyright secured
The right of translation is reserved in all languages, including the Scandinavian