Canada, our northern neighbor, is a prosperous colony of 5,371,315, according to her latest census. We could almost have peopled Canada entire with as large a population out of the immigration of the decade 1880-1890. More than that, the whole population of Scotland, or that of Ireland, above four and a quarter millions, could have moved over to America, and it would only have equaled the actual immigration since 1900. If the whole of Wales were to come over, the 1,700,000 odd of them would not have equaled by 100,000 the total immigration of the two years 1904-05. If all Sweden and Norway packed up and left the question of one or two kingdoms to settle itself, the 7,300,000 sturdy Scandinavians would fall short of the immigrant host that has come in from everywhither since 1891. More people than the entire population of Switzerland (3,315,000) have landed in America within four years. If only the majority of these aliens had possessed the love of liberty and the characteristic virtues of the Protestant Swiss, our problem would be very different. These comparisons strongly impress the responsibility and burden imposed upon America by practically free and wide-open gates. [Sidenote: The Problem of Assimilation] Here are the totals which we have now reached. Of the 23,000,000 aliens who have come into America since the Revolution, the last census (1900) gave the number then living at 10,256,664. A census taken to-day would doubtless show about 14,000,000. Add the children of foreign parentage and it would bring the total up to between 35,000,000 and 40,000,000. Mr. Sargent estimates this total at forty-six per cent. of our entire population. The immigration problem presents nothing less than the assimilation of this vast mass of humanity. No wonder thoughtful Americans stand aghast before it. At the same time, the only thing to fear is failure to understand the situation and meet it. As Professor Boyesen says: "The amazing thing in Americans is their utter indifference or supine optimism. 'Don't you worry, old fellow,' said a very intelligent professional man to me recently, when I told him of my observations during a visit to Castle Garden.[5] 'What does it matter whether a hundred thousand more or less arrive? Even if a million arrived annually, or two millions, I guess we could take care of them. Why, this country is capable of supporting a population of two hundred millions without being half so densely populated as Belgium. Only let them come--the more the merrier!' I believe this state of mind is fairly typical. It is the sublime but dangerous optimism of a race which has never been confronted with serious problems." But we believe it is the optimism of a race which, when fairly brought face to face with crises, will not fail to meet them in the same spirit that has won the victories of civil and religious liberty and established a free government of, by, and for the people in America. _III. Why They Come_