Here came the bulk of the great successive waves of emigration from Ireland. How large the total of the children of Ireland, who cast their lot with this Republic, history does not tell us with any accuracy. They were here from the very beginning of the white man’s settlement on Manhattan Island. Before 1820, no governmental roster of immigrants was kept, but in the eighty years from 1821 to 1900, the United States census bureau counts up a total of 3,871,253 Irish immigrants, nearly 3,000,000 coming hither between 1851 and 1900. That this enormous inflow came from a country that at its highest tide-mark of population never numbered more than 8,000,000 souls is a fact at once astounding and appalling. Ireland literally cuts itself in two to supply the emigration to America. Besides this outflow to America, another stream ran to England, Australia and New Zealand, but to each in much smaller volume than crossed the Atlantic. At its highest flow it brought over nearly a million Irish souls in ten years, namely, between 1851 and 1860. Since then it has fallen away, but what this immigration has meant in the upbuilding of the country at large may be imagined from the deduction made by the United State census of 1900. It is therein stated that “Ireland contributed more than two-fifths of the immigration between 1821 and 1850; more than one-third from 1851 to 1860; nearly one-fifth from 1861 to 1870.” In the following decade the stream held about the same level. Between 1881 and 1890 it rose again by nearly fifty per cent. Thenceforward the drain upon Ireland was to lessen, and with a total of 390,179 between 1891 and 1900 it represented barely more than one-tenth of the total immigration for the ten years. Since 1900 it has steadily declined, mainly for the reason that Ireland is nearly drained of its emigration material, but also in some degree that better conditions are obtaining there. A backward glance shows that of the nearly twenty millions of immigrants from all lands up to 1900 one in every five came from Ireland. For the eighty years back of 1820 the proportion of Irish immigrants was even larger—probably one in four. And it was not, as many of the descendants of the early Irish immigration have imagined, entirely of the better off and entirely from the north of Ireland. Doubtless the Presbyterians of the northern Irish counties predominated, and counted in their ranks men of the learned professions as well as artificers and merchants, but of the tens of thousands of pure Celts from the central, southern and western counties deported to the West Indies in the seventeenth century many thousands found their way to the settlements of what are now the southern states of the Union. Original researches among colonial records by a member of our society show that during the century and a half before the Revolution several thousand immigrants of Celtic stock came direct to the colonies from Ireland.