In trying to explain this power, the most obvious comparison which would arise in the mind of an intelligent reader would be, that Webster, as a rhetorician, resembled Vauban and Cohorn as military engineers. In the war of debate, he so _fortified_ the propositions he maintained, that they could not be carried by direct assault, but must be patiently besieged. The words he employed were simple enough, and fell short of including the vocabulary of even fifth-rate declaimers; but he had the art of so disposing them that, to an honest reasoner, the position he took appeared to be impregnable. To assail it by the ordinary method of passionate protest and illogical reasoning, was as futile as a dash of light cavalry would have been against the defences of such cities as Namur and Lille. Indeed, in his speech, "The Constitution not a Compact between Sovereign States," he erected a whole Torres Vedras line of fortifications, on which legislative Massenas dashed themselves in vain, and, however strong in numbers in respect to the power of voting him down, recoiled defeated in every attempt to reason him down. In further illustration of this peculiar power of Webster, the Speech of the 7th of March, 1850, may be cited, for its delivery is to be ranked with the most important historical events. For some years it was the object of the extremes of panegyric and the extremes of execration. But this effort is really the most loosely constructed of all the great productions of Webster's mind. In force, compactness, and completeness, in closeness of thought to things, in closeness of imagery to the reasoning it illustrates, and in general intellectual fibre, muscle, and bone, it cannot be compared to such an oration as that on the "First Settlement of New England," or such a speech as that which had for its theme, "The Constitution not a Compact between Sovereign States"; but, after all deductions have been made, it was still a speech which frowned upon its opponents as a kind of verbal fortress constructed both for the purpose of defence and aggression. Its fame is due, in a great degree, to its resistance to a storm of assaults, such as had rarely before been concentrated on any speech delivered in either branch of the Congress of the United States. Indeed, a very large portion of the intellect, the moral sentiment, and the moral passion of the free States was directed against it. There was not a weapon in the armory of the dialectician or the rhetorician which was not employed with the intent of demolishing it. Contempt of Webster was vehemently taught as the beginning of political wisdom. That a speech, thus assailed, should survive the attacks made upon it, appeared to be impossible. And yet it did survive, and is alive now, while better speeches, or what the present writer thought, at the time, to be more convincing speeches, have not retained individual existence, however deeply they may have influenced that