Note 7 — I THE ALIEN ADVANCE

Those who are interested in this feature can trace—by examining the table in the Appendix which gives the immigration by years since 1820—the relation between prosperity and immigration. The effect of the panics of 1837, 1843, 1873, 1893, and the depression caused by the Civil War, will be seen clearly in the immigration totals. This subject is treated in Immigration, 17 ff.