INTRODUCTION
As is well known, studies of most races are showing increased weight and stature of children as compared with the older generations, not only after immigration to America but in their native countries as well. Higher standards of living and the newer knowledge of nutrition have been thought responsible for these changes.Briefly, white schoolboys of the San Francisco bay region1 have increased 2 inches (5.08 cm.) in average height and 2 pounds (0.9 Kg.) in average weight in thirty years,2 while the girls have advanced 1¾ inches (4.5 cm.) in average stature and 3 pounds (1.3 Kg.) in average weight. The gain of Japanese children in California in twenty years3 surpasses this, but the Chinese children of San Francisco prove to be the exception to the rule; not only has there been no change of statistical significance from the figures of sixteen years ago from