Mr. Clay did not leave the House long in doubt {7} concerning his views. He quickly revealed and avowed that noted change of opinion upon this subject, which has been commonly accounted one of his greatest inconsistencies, but which may be very properly considered as simply manifesting that growth in patriotism and national spirit experienced by almost all the leading men of the country, outside of New England, in consequence of the vicissitudes of the period of war under which the nation suffered between the dates of Mr. Clay's two utterances. He frankly confessed that he had changed his opinion, and explained the change by saying that the power of Congress in respect to the matter was contained in the clause of the Constitution which conferred upon Congress the authority to make all laws necessary and proper for carrying the powers of the Government into operation; that, in the interpretation of the words "necessary and proper," reference must always be had to existing circumstances; that, when conditions change, the interpretation must be so modified as to meet and satisfy such change; and that the conditions obtaining in the country in 1816 were so changed from those obtaining in 1811 as to require the enlarged interpretation of the powers of Congress under this clause upon the subject of the monetary system of the country. [Sidenote: Passage of the Bank Bill by the House of Representatives.] The eloquence and the influence of Mr. Clay counted heavily in favor of the measure, and it was passed by a substantial majority of votes. In fact, the privileges of the proposed Bank had been increased by amendment during the progress of the bill through the House. The Bank and its branches were made the depositories of the funds of the Government. This great advantage was, at least, a substantial offset to the other modifications of the original bill, whereby the clauses requiring that the president of {8} the Bank should always be chosen from among the Government directors, and reserving to Congress the power to permit a temporary suspension of specie payment by the Bank, were stricken out. [Sidenote: The passage of the Bank Bill through the Senate.] During the passage of the bill through the Senate only a single Senator expressed any doubts of its constitutionality, Mr. Wells, of Delaware. Mr. Wells did not deny the power of Congress to charter a national bank, but simply contended that the particular Bank proposed in the bill exceeded what was "necessary and proper" for carrying into effect the powers of Congress, and was therefore unconstitutional. On the other hand, Senators Barbour, of Virginia, Taylor, of South Carolina, and Bibb, of Georgia, supported the measure, both in principle and in details, and carried it with a larger relative majority through the Senate than it had received in the House. [Sidenote: The United States Bank of 1816 a Southern measure.]