The object of the study reported in this book was to estimate the physical constitution of private school children, children whose parents were marked by professional or economic success. The general trend of growth is charted and expressed in formulas. There are also comparisons between these children and those reported by others. Differences in racial stocks are studied. Unfortunately, most readers of such a report will be lost in the maze of statistics. The value of the report might well have been enhanced by a general conclusion as to the results of the study.