Success, perpetual and transcendent, such as has always waited on Slavery in all her attempts to mould the history of the country and to compel the course of its events to do her bidding, naturally excites a measure of curiosity if not of admiration, in the mind of every observer. Have the slave-owners thus gone on from victory to victory and from strength to strength by reason of their multitude, of their wealth, of their public services, of their intelligence, of their wisdom, of their genius, or of their virtue? Success in gigantic crime sometimes implies a strength and energy which compel a kind of respect even from those that hate it most. The right supremacy of the power that thus sways our destiny clearly does not reside in the overwhelming numbers of those that bear rule. The entire sum of all who have any direct connection with Slavery, as owners or hirers, is less than THREE HUNDRED AND FIFTY THOUSAND,--not half as many as the inhabitants of the single city of New York! And yet even this number exaggerates the numerical force of the dominant element in our affairs. To approximate to the true result, it would be fair to strike from the gross sum those owning or employing less than ten slaves, in order to arrive at the number of slave-owners who really compose the ruling influence of the nation. This would leave but a small fraction over NINETY THOUSAND, men, women, and children, owning slaves enough to unite them in a common interest. And from this should be deducted the women and minors, actually owning slaves in their own right, but who have no voice in public affairs. These taken away, and the absentees flying to Europe or the North from the moral contaminations and material discomforts inseparable from Slavery, and not much more than FIFTY THOUSAND voting men will remain to represent this mighty and all-controlling power!--a fact as astounding as it is incontrovertible. Oligarchies are nothing new in the history of the world. The government of the many by the few is the rule, and not the exception, in the politics of the times that have been and of those that now are. But the concentration of the power that determines the policy, makes the laws, and appoints the ministers of a mighty nation, in the hands of less than the five-hundredth part of its members, is an improvement on the essence of the elder aristocracies; while the usurpation of the title of the Model Republic and of the Pattern Democracy, under which we offer ourselves to the admiration and imitation of less happy nations, is certainly a refinement on their nomenclature.