As is well known, the great majority of the people of Japan live mainly on a vegetable diet. It is also known to physiologists at least that Japanese dietaries are characterized by a relatively small amount of proteid, though since the passage of the Food Supply Act of the navy in 1884, the proteid-content of the navy ration has been decidedly increased. It will be interesting to note a few of the results collated by Oshima, and some of the conclusions that he draws from the data presented. The foregoing table shows a few of the more striking results of the dietary studies obtained with various classes of people, where the food used was largely vegetable, but generally with some admixture of fish or meat. The figures presented, which represent the actual amounts of food consumed, with proper correction for the indigestible portion, show a much smaller intake of proteid than is common with European and American people; indeed, both proteid and fuel value are very much less than common practices call for among western peoples, even when due allowance is made for differences in body-weight. To quote from Oshima, “Probably the most interesting of the dietary studies are those with poorer classes, which comprise by far the larger part of the population. The dietaries of the miscellaneous class, including employees, prisoners, etc., consisted largely of vegetable foods and supplied on an average 59 grams of proteid and 2190 calories of energy per man per day.” Especially suggestive were the results of a study made with a military colonist, a type of man very common in Japan; in reality farmers who live at home, but have military drill at certain fixed times. The subject was carefully selected under advice of officers in charge of the district, and weighed 59.9 kilograms. His diet consisted solely of cereals and vegetables, being identical with that of the people in the rural districts of Japan. His daily food was found to be composed of 46.3 grams of digestible proteid, with a fuel value of 2703 calories. Even more striking were the results obtained in a study of the dietary habits of three healthy natives of Formosa, employed as day laborers at the military hospital. They weighed respectively 60.9, 55, and 54.8 kilograms. The main portion of their diet was rice, supplemented, however, by a little salt fish, salted melon, spinach, ginger, and greens. The daily amount of proteid ingested was 48.0 grams (37.4 grams of digestible proteid), with a total fuel value of 1948 calories. A composite sample of urine covering seven days showed an average daily output of metabolized nitrogen of 6.93 grams, corresponding to a breaking down of 43.3 grams of proteid. Especially interesting also is a series of experiments with professional men, reported by Oshima, in which attention was paid to nitrogen balance. The following table shows the essential results: