Besides the two hundred and twenty premiums, amounting in the aggregate to $2,396, freedom granted several diplomas and silver medals; besides the thirty premiums amounting in the aggregate to $42, slavery granted none--nothing. While examining these figures, it should be recollected that agriculture is the peculiar province of the slave States. If commerce or manufactures had been the subject of the fair, the result might have shown even a greater disproportion in favor of freedom, and yet there would have been some excuse for slavery, for it makes no pretensions to either the one or the other; but as agriculture was the subject, slavery can have no excuse whatever, but must bear all the shame of its niggardly and revolting impotence; this it must do for the reason that agriculture is its special and almost only pursuit. The reports of the Comptrollers of the States of New York and North Carolina, for the year 1856, are now before us. From each report we have gleaned a single item, which, when compared, the one with the other, speaks volumes in favor of freedom and against slavery. We refer to the average value per acre of lands in the two States; let slavocrats read, reflect, and repent. In 1856, there were assessed for taxation in the State of NEW YORK, Acres of land 30,080,000 Valued at $1,112,133,136 Average value per acre $36.97 In 1856, there were assessed for taxation in the State of NORTH CAROLINA, Acres of land 32,450,560 Valued at $98,800,636 Average value per acre $3.06 It is difficult for us to make any remarks on the official facts above. Our indignation is struck almost dumb at this astounding and revolting display of the awful wreck that slavery is leaving behind it in the South. We will however, go into a calculation for the purpose of ascertaining as nearly as possible, in this one particular, how much North Carolina has lost by the retention of slavery. As we have already seen, the average value per acre of land in the State of New York is $36.97; in North Carolina it is only $3.06; why is it so much less, or even any less, in the latter than in the former? The answer is, _slavery_. In soil, in climate, in minerals, in water-power for manufactural purposes, and in area of territory, North Carolina has the advantage of New York, and, with the exception of slavery, no plausible reason can possibly be assigned why land should not be _at least_ as valuable in the valley of the Yadkin as it is along the banks of the Genesee. The difference between $36.97 and $3.06 is $33.91, which, multiplied by the whole number of acres of land in North Carolina, will show, in this one particular, the enormous loss that Freedom has sustained on account of Slavery in the Old North State. Thus:-- 32,450,560 acres _a_ $33,91 $1,100,398,489.