and western Europe. These arrivals added strength to the United States, particularly as a large part of them settled on farms.
This stream of immigration gradually dried up, but was succeeded by a flood from a new source,—southern and eastern Europe. Italians, Slavs, Poles, Magyars, East European Hebrews, Finns, Portuguese, Greeks, Roumanians and representatives of many other small nationalities began to seek fortunes in America. The earlier immigration had been made up largely of those who sought escape from religious or political tyranny and came to settle permanent homes. The newer immigration was made up, on the whole, of those who frankly sought wealth. The difference in the reason for coming could not fail to mean a difference in selection of the immigrants, quite apart from the change in the races.
Last of all began an immigration of Levantines, of Syrians, Armenians, and other inhabitants of Asiatic Turkey. Beyond this region lie the great nations of Asia, "oversaturated" with population. So far there has been little more than the threat of their overflow, but the threat is certain to become a reality within a few years unless prevented by legal restriction.
The eugenic results of immigration are partly indirect and partly direct. Direct results follow if the newcomers are assimilated,—a word which we shall use rather narrowly to mean that free intermarriage takes place between them and all parts of the older population. We shall discuss the direct results first, the nature of which depends largely on whether the newcomers are racially homogeneous with the population already in the country.
If they are like, the old and new will blend without difficulty. The effects of the immigration then depend on whether the immigrants are better or worse in average quality than the older residents. If as good or better, they are valuable additions;