In August, 1805, the corporation of Harvard College elected Mr. Adams Professor of Rhetoric and Oratory on the Boylston foundation. After modifications of the statutes, which he suggested, were adopted, he accepted, and immediately entered upon a course of preparatory studies, reviving his knowledge of the Greek, and making researches among English, Latin, and French writers, relative to the objects of his professorship. In the ensuing December, as a member of the Ninth Congress, he took an active part in the debates and measures of the Senate. In January, 1806, he was appointed on a committee, of which Mr. Smith, of Maryland, was chairman, on that part of the President's message "relative to the spoliations of our commerce on the high seas, and the new principles assumed by the British courts of admiralty, as a pretext for the condemnation of our vessels in their prize courts." The debates in that committee resulted in two resolutions, both offered by Mr. Adams, adopted, reported, and finally passed by the Senate, with some modifications; Mr. Pickering, Mr. Hillhouse, and Mr. Tracy, the three Federalists in the Senate, voting for them. British aggressions and British policy towards neutrals were, in the judgment of Mr. Adams, to be resisted at every hazard. His opinions on these subjects had been formed from opportunities which no other American statesman had equally enjoyed. In 1783 he had been present at the signature of the treaty of peace, and had imbibed the opinions and feelings then entertained by the American ministers. In 1795 he had been engaged in negotiations with British statesmen, particularly with Lord Grenville. Their views in respect of American commercial rights he considered selfish and insolent; resistance to them as an emanation from the spirit of patriotism, to which others gave the name of "prejudice," or "antipathy." Of these opinions and feelings he made no concealment; and to them may be traced the course of policy which, shortly after, separated him from the Federal party, and subjected him temporarily to their reproaches and censures. In June, 1806, Mr. Adams was inaugurated Professor of Oratory in Harvard University, and during the ensuing two years delivered a course of lectures on Rhetoric and Oratory, which have been published in two octavo volumes, and constitute an enduring monument of fidelity, laborious research, and eloquent illustration of the objects and duties of his academic station. While engaged in these labors, an event occurred which intensely excited his feelings as a man and a statesman.