Meanwhile the committee on Manufactures were very deliberately maturing a measure. It was reported to the House early in April, and taken up for consideration on the 15th. It was nothing more than an administrative measure for the purpose of securing a stricter execution of the existing tariff.

McDuffie's
Amendment.

Mr. McDuffie made another effort to move the House to consider a reduction of duties, in the form of an amendment to this bill. He offered such an amendment, which provided for a return to the duties imposed before 1824 upon woollens, cottons, iron, hemp, etc.

McDuffie's doctrine
that the producers
of exports pay
finally the duties
on the imports.

It was in support of this amendment that he made his famous argument of April 29th, 1830, in which he developed, for the first time, the doctrine in regard to the final payment of the duties which furnished the economic basis of nullification. That doctrine was that the producers of the exports, which are exchanged in the foreign markets for the imports, pay, finally, the duty upon the imports. His course of reasoning in the establishment of this doctrine was as follows: He reduced all trade ultimately to barter between producers, and then declared it to be self-evident that when a producer of exports should be obliged to pay a duty of twenty-five per centum upon the imports, which he had received in pay for his exports, before he could bring them into the country of his residence, he had received finally twenty-five per centum less for his exports than he would have received had he not been compelled to pay any duty upon his imports.

Mr. McDuffie then drew from the statistics of the foreign trade of the United States the fact that the sections cultivating cotton and rice, constituting less than one-fifth of the Union, both in territory and population, produced thirty of the fifty-eight millions' worth of annual exports; and finally drew the conclusion from these premises that one-fifth of the people, the population of the planting sections, paid more than one-half of the duties on the imports of the country.

The danger in
Mr. McDuffie's
conclusions.