INSTABILITY has been characteristic of the population of Hawaii for at least half a century. Among the factors chiefly responsible may be named the great decrease in the native Hawaiian population and its partial amalgamation with Caucasian and Asiatic elements, the importation of laborers from many countries, the rapid increase by births of certain foreign peoples, and the departure of many laborers to the mainland of the United States and of others to their native lands. Considerable interest attaches to the question of Hawaii's future population.