THE CIRCLE OF KNOWLEDGE
Reading edition
ESSENTIAL FACTS OF EVERYDAY INTEREST IN NATURE, GEOGRAPHY, HISTORY, TRAVEL, GOVERNMENT, SCIENCE, INVENTION, EDUCATION, LANGUAGE, LITERATURE, FINE ARTS, PHILOSOPHY, RELIGION, INDUSTRY, BIOGRAPHY, HUMAN CULTURE, AND UNIVERSAL PROGRESS
Easy to Read; Easy to Understand; Easy to Retain
EDITOR-IN-CHIEF HENRY W. RUOFF, M.A., Litt.D., D.C.L. Editor of “The Century Book of Facts,” “The Capitals of the World,” “Leaders of Men,” “The Standard Dictionary of Facts,” “Masters of Achievement,” “The Volume Library,” “The Human Interest Library,” Etc.
NUMEROUS TEXT ILLUSTRATIONS, MAPS TABLES, DUOTONE AND COLOR PLATES
Exclusive Publishers for Canada and Newfoundland: THE JOHN A. HERTEL CO., Ltd. TORONTO, ONTARIO
THE STANDARD PUBLICATION COMPANY BOSTON · WASHINGTON · CHICAGO 1917
Copyright, 1916, by THE STANDARD PUBLICATION COMPANY
Copyright, 1917, by THE STANDARD PUBLICATION COMPANY
All Rights Reserved