From all these causes there will be an augmented exodus from Europe to America, when our rebellion is suppressed, and slavery overthrown. Besides, the President of the United States now proposes appropriations of money by Congress in aid of immigration, and such will become the policy of our Government. We have seen the official estimate made by our Superintendent of the Census, but if we take the ratio of increase of the last decade, the result would be as follows:
| 1870, | 42,636,858 |
| 1880, | 57,791,315 |
| 1890, | 78,359,243 |
| 1900, | 106,247,297 |
The estimate of the Superintendent is, therefore, six millions less than according to the ratio from 1850 to 1860, and much less than from 1790 to 1860.
When we reflect that if, as densely settled as Massachusetts, our population would exceed 513,000,000, or if numbering as many to the square mile as England, our inhabitants would then be more than twelve hundred millions, the estimate of 100,000,000 for the year 1900 cannot be regarded as improbable.
Our national wealth was
| in 1850, | $7,135,780,228 |
| In 1860, | $16,159,616,068 |
Increase from 1850 to 1860, 126.45 per cent.
At the same rate of increase for the four succeeding decades, the result would be:
| In 1870, | $36,593,450,585 |
| In 1880, | 82,865,868,849 |
| In 1890, | 187,314,053,225 |
| In 1900, | 423,330,438,288 |