In 1790 the population of Rhode Island was 69,110, and that of Delaware 59,096. In 1860, the former numbered 174,620, the latter 112,216. Thus, from 1790 to 1860, the ratio of increase of population of Rhode Island was 152.67 per cent., and of Delaware, 89.88. At the same relative rate of increase, for the next, as for the last seventy years, the population of Rhode Island in 1930, would be 441,212, and of Delaware, 213,074. Thus in 1790, Rhode Island numbered but 10,014 more than Delaware, 62,404 more in 1860, and, at the same ratio of increase, 228,138 more in 1930. Such has been and would be the effect of slavery in retarding the increase of Delaware, as compared with Rhode Island. (Census Table, 1860, No. 1.) The population of Rhode Island per square mile in 1790, was 52.15, and in 1860, 133.71; that of Delaware, 27.87 in 1790, and 59.93 in 1860. The absolute increase of population of Rhode Island, per square mile, from 1790 to 1860, was 80.79, and from 1850 to 1860, 20.74; that of Delaware, from 1790 to 1860, was 25.05, and from 1850 to 1860, 9.76. (Ib.) AREA.--The area of Rhode Island is 1,306 square miles, and of Delaware, 2,120, being 38 per cent., or much more than one third larger than Rhode Island. Retaining their respective ratios of increase, per square mile, from 1790 to 1860, and reversing their areas, the population of Rhode Island in 1860, would have been 283,465, and of Delaware, 78,268. In natural fertility of soil Delaware is far superior to Rhode Island, the seasons much more favorable for crops and stock, and with more than double the number of acres of arable land. PROGRESS OF WEALTH.--By Census Tables 33 and 36 (omitting commerce), it appears that the products of industry as given, viz., of agriculture, manufactures, mines, and fisheries, were that year, in Rhode Island, of the value of $52,400,000, or $300 _per capita_, and in Delaware, $16,100,000, or $143 _per capita_. That is, the average annual value of the product of the labor of each person in Rhode Island is greatly more than double that of the labor of each person in Delaware, including slaves. This, we have seen, would make the value of the products of labor in Rhode Island in 1930, $132,368,600, and in Delaware, only $30,469,582, notwithstanding the far greater area and superior natural advantages of Delaware as compared with Rhode Island. As to the rate of increase: the value of the products of Delaware in 1850 was $7,804,992, in 1860, $16,100,000; and in Rhode Island, in 1850, $24,288,088, and in 1860, $52,400,000. (Table 9, Treas. Rep., 1856), exhibiting a large difference in the ratio in favor of Rhode Island.