Tue, sometimes a vice. The eloquent preacher who turns the hearts of his hearers from gross ness to holy aspirations demonstrates a virtu ous purpose in his mastery over the moods of men; the exhorter of the mob, who incites it to a raging blood-lust, is the manifest agent of evil: but the power of the two is the same. It is a power that exists irrespective of morality; that may be used for good or for ill. Moreover, the potency of oratory is not necessarily regu lated by its reasonableness. This may vary vastly according to the group-intelligence of the auditors.