=§ 20. Propositions from 1817 to 1822.=--For many years the question of amendment of the law does not appear to have come up in Congress. The abolition of the slave trade seems to have absorbed the attention of Congress. Several treaties were negotiated including clauses on the return of fugitives.[91] The question was brought up again in 1817 by Pindall of Virginia, who for several years urged a revision of the act. A committee of which he was chairman was appointed, December 15, 1817, and reported a bill, December 29, 1817.[92] This third proposition of general amendment led to a debate, January 26 and 29, 1818, in which for the first time we have a record of discussion on the principles of the act and its relations to human freedom. The opposition was based not only on constitutional, but on humanitarian grounds.[93] A petition of the Pennsylvania Abolition Society, asking for a milder law than that of 1793, added fuel to the discussion.[94] The principle of the bill was that the fugitives should be surrendered by a requisition on the State Executive, as in the case of fugitives from justice: the question of proof was thus left to the courts of the State of the claimant, and there was to be no habeas corpus. The strongest expression of disapproval is found in the speech of Mr. Adams of Massachusetts, who said, "that, in guaranteeing the possession of slaves, the Constitution did not authorize or require the General Government to go as far as the bill proposed to render this bill effectual; that the bill contained provisions dangerous to the liberty and safety of the free people of color in other sections of the Union."[95] Mr. Rich of Vermont desired "that it might be so amended as to guard more effectually the rights of free persons of color. This motion he enforced by urging the oppressions to which these persons were now subjected, and the necessity of some regulation on the subject, which he thought might be very properly connected with this bill."[96] Mr. Livermore also showed that it exposed the colored men of the North to the peril of being dragged South, and there convicted.[97] All these objections, however, were considered of little value by some who, like Smith of Maryland, thought that the subject of the free colored population and their protection should be treated separately, while Mr. Holmes of Massachusetts suggested that the operation of the writ of habeas corpus would render such acts of injustice improbable.[98] Mason, of the same State, objected to a trial by jury, which had been suggested, because "juries in Massachusetts would in ninety-nine cases out of one hundred decide in favor of the fugitives, and he did not wish his town [Boston] infected with the runaways of the South."[99]