Interest rates are a potent factor in business activity, and in order that these rates may be equalized to meet the varying needs of the seasons and of widely separated communities, and to prevent the recurrence of financial stringencies which injuriously affect legitimate business, it is necessary that there should be an element of elasticity in our monetary system. Banks are the natural servants of commerce, and upon them should be placed, as far as practicable, the burden of furnishing and maintaining a circulation adequate to supply the needs of our diversified industries and of our domestic and foreign commerce; and the issue of this should be so regulated that a sufficient supply should be always available for the business interests of the country. It would be both unwise and unnecessary at this time to attempt to reconstruct our financial system, which has been the growth of a century; but some additional legislation is, I think, desirable. The mere outline of any plan sufficiently comprehensive to meet these requirements would transgress the appropriate limits of this communication. It is suggested, however, that all future legislation on the subject should be with the view of encouraging the use of such instrumentalities as will automatically supply every legitimate demand of productive industries and of commerce, not only in the amount, but in the character of circulation; and of making all kinds of money interchangeable, and, at the will of the holder, convertible into the established gold standard. * * * * * I again call your attention to the need of passing a proper immigration law, covering the points outlined in my Message to you at the first session of the present Congress; substantially such a bill has already passed the House. * * * * *