It is impossible here to indicate, except in a very general way, the successive steps of the operation. The one summary consideration in the Rhetoric of Oratory, from which flows the entire array of details, is the regard to the dispositions and state of mind of the audience; the presenting of topics and considerations that chime in with these dispositions, and the avoiding of everything that would conflict with them. To grasp this comprehensive view, and to follow it out in some of the chief circumstantials of persuasive address--the leading forms of argument, and the appeals to the more prominent feelings,--would soon provide a touchstone to a great oration, and lead us to distinguish the materials of oratory from the use made of them. Take the circumstance of _negative tact_; by which is meant the careful avoidance of whatever might grate on the minds of those addressed. Forensic oratory in general, and the oratory of Parliamentary leaders in particular, will show this in perfection; and, for a first study of it, there is probably nothing to surpass the Erskine Speeches above cited. It could, however, be found in Macaulay; although in a different proportion to the other merits. The Macaulay Speeches have the abundance of matter, and the powers of style, that minister to oratory, although not constituting its distinctive feature. In these speeches, we may note how he guages the minds of the men of rank and property, in and out of Parliament, who constituted the opposition to Reform; how tenderly he deals with their prejudices and class interests; how he shapes and adduces his arguments so as to gain those very feelings to the side he advocates; how he brings his accumulated store of historical illustrations to his aid, under the guidance of both the positive and the negative tact of the orator; saying everything to gain, and nothing to alienate the dispositions that he has carefully measured. After Erskine and Macaulay have yielded their first contribution to the oratorical student, he could turn with profit to Burke, who has the materials of oratory in the same high order as Macaulay, but who in the employment of them so often miscarries--sometimes partially, at other times wholly. It then becomes an exercise to distinguish his successes from his failures; to resolve these into their elementary merits and defects, according to the oratorical scheme. The close study of one or two orations is still the preferable course; and the most profitable transition from the Burke sample is to the selected speech or speeches of some other orator as Canning or Brougham. All the time, the pupil must be enlarging and improving his analytic scheme, which is the means of keeping his mind to the point in hand, amid the distraction of the orator's gorgeous material.