Second Revised Edition Enlarged

WITH A FORWARD BY BISHOP JOHN H. VINCENT
Chancellor of Chautauqua Institution

WITH 12 ILLUSTRATIONS

1912, 1913, 1920

TO HER WHOSE DEVOTION AND UNTIRING EFFORT TOWARD AN INTELLIGENT UNDERSTANDING OF HER CHILDREN HAVE EVER BEEN AN INSPIRATION,

MY MOTHER
AND
TO MY CHILDREN
WHOSE CONTRIBUTION TOWARD MY EDUCATION HAS BEEN GREATER THAN THAT FROM ANY OTHER SOURCE, THIS LITTLE BOOK IS AFFECTIONATELY DEDICATED.

PREFACE TO SECOND EDITION