Chapter IV

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I am also greatly indebted to my assistants in the laboratory, for help in preparing the charts, keeping the records, and correcting manuscript and proof.

To Superintendent Edward R. Johnstone, whose wisdom and foresight led to the establishment of this Department of Research, whose help, sympathy, and encouragement have been constant throughout the work of preparing this study, the thanks and gratitude of the entire group of readers who find in these facts any help toward the solution of the problems that they are facing, are due.

HENRY H. GODDARD.

VINELAND, N.J., SEPTEMBER, 1912.

CONTENTS

PAGE

PREFACE vii

I. THE STORY OF DEBORAH 1

II. THE DATA 13

THE CHARTS 33

III. WHAT IT MEANS 50

IV. FURTHER FACTS ABOUT THE KALLIKAK FAMILY 70

V. WHAT IS TO BE DONE? 101

LIST OF ILLUSTRATIONS

DEBORAH KALLIKAK AS SHE APPEARS TO-DAY AT THE TRAINING SCHOOL _Frontispiece_

FACING PAGE

DEBORAH AT THE SEWING MACHINE 4

DEBORAH AS WAITRESS 4

SPECIMENS OF DEBORAH’S HANDIWORK 6

DEBORAH, AGED FIFTEEN 8

DEBORAH, AGED SEVENTEEN 8

LAST HOME OF MILLARD KALLIKAK 20

ESTHER, DAUGHTER OF “DADDY” KALLIKAK 20

RUINS OF MOUNTAIN HUT BUILT BY MARTIN KALLIKAK, JR. 24

SITE OF MOUNTAIN HOME OF MILLARD KALLIKAK 24

GREAT-GRANDSON OF “DADDY” KALLIKAK 84

MELINDA, DAUGHTER OF “JEMIMA” 84

GREAT-GRANDCHILDREN OF “OLD SAL” 88

CHILDREN OF GUSS SAUNDERS, WITH THEIR GRANDMOTHER 88

THE KALLIKAK FAMILY

A STUDY IN THE HEREDITY OF FEEBLE-MINDEDNESS

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