That, in view of our new Homestead law--our high wages--the extinction of slavery--increased confidence in our institutions--and augmented immigration, these results will be achieved, can scarcely be doubted. As population becomes more dense in Europe, there will be an increased immigration to our Union, and each new settler writes to his friends abroad, and often remits money to induce them to join him in his Western home. The electric ocean telegraph will soon unite Europe with America, and improved communications are constantly shortening the duration of the voyage and diminishing the expense. Besides, this war has made us much better known to the European _masses_, who, everywhere, with great unanimity and enthusiasm sustain our cause, and, with slavery extinguished, will still more prefer our institutions. 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 _Tonnage._ In 1841, 1,368,127 tons. " 1851, 3,772,439 " " 1861, 5,539,812 " At the same rate of increase as from 1851 to 1861, the result would be: In 1871, 8,134,578 tons. " 1881, 11,952,817 " " 1891, 17,541,514 " " 1901, 25,758,948 " Total number of copies of our newspapers and periodicals circulated in the United States in 1860, 927,951,548, exceeding that of all the rest of the world. Let us now recapitulate the results from our Census, founded on a comparison of the Slave and Free States. * * * * * MASSACHUSETTS.--Free State. MARYLAND.--Slave State.