In recommending to Congress a reduction of the present rates of duty and a revision and modification of the act of 1842, I am far from entertaining opinions unfriendly to the manufacturers. On the contrary, I desire to see them prosperous as far as they can be so without imposing unequal burdens on other interests. The advantage under any system of indirect taxation, even within the revenue standard, must be in favor of the manufacturing interest, and of this no other interest will complain. I recommend to Congress the abolition of the minimum principle, or assumed, arbitrary, and false values, and of specific duties, and the substitution in their place of ad valorem duties as the fairest and most equitable indirect tax which can be imposed. By the ad valorem principle all articles are taxed according to their cost or value, and those which are of inferior quality or of small cost bear only the just proportion of the tax with those which are of superior quality or greater cost. The articles consumed by all are taxed at the same rate. A system of ad valorem revenue duties, with proper discriminations and proper guards against frauds in collecting them, it is not doubted will afford ample incidental advantages to the manufacturers and enable them to derive as great profits as can be derived from any other regular business. It is believed that such a system strictly within the revenue standard will place the manufacturing interests on a stable footing and inure to their permanent advantage, while it will as nearly as may be practicable extend to all the great interests of the country the incidental protection which can be afforded by our revenue laws. Such a system, when once firmly established, would be permanent, and not be subject to the constant complaints, agitations, and changes which must ever occur when duties are not laid for revenue, but for the "protection merely" of a favored interest. In the deliberations of Congress on this subject it is hoped that a spirit of mutual concession and compromise between conflicting interests may prevail, and that the result of their labors may be crowned with the happiest consequences.