It is unnecessary to decide whether the first and third pleas would answer the declaration, if the transaction pleaded were lawful, because the directors of the bank were forbidden by law from dealing with Culver in the manner they did. At the time this proceeding took place the Currency Act of 1863 had been superseded by the act of June 3, 1864, which expressly repealed the former act. It is, therefore, by the provisions of the latter act that the conduct of banking associations must be governed, whether they were organized before or after it became a law. And in looking into this act, we find these associations expressly prohibited from making any loan or discount on the security of the shares of their own capital stock. And so marked is the policy of Congress on this subject, that it does not allow a bank to become the purchaser or holder of its shares at all, unless absolutely necessary to prevent loss on a debt previously contracted in good faith, and not then for a longer period than six months. It is easy to see, that if the power were given to a bank to loan money on the security of its shares, it would imply also a power to become the owner of those shares, and this Congress intended to guard against.

These institutions were created to subserve public purposes, and not the mere private interests of their stockholders. And in no better way could this object be attained than by placing shareholders, in their pecuniary dealings with the bank, on the same footing with other customers. Besides, how could the capital of the bank be kept available for active use, if the shareholder, who had pledged his stock for borrowed money, should be unable to meet his obligation? To the extent of the debt the capital would be withdrawn, and it is hardly possible that this could be the case for any length of time, were the debt secured outside of the shares of the bank. But it is unnecessary to seek for the reason of this prohibition, as the provision concerning it is explicit, and free from ambiguity.

Bank v. Lanier/Opinion of the Court

Although the section in question forbids loans or discounts by a bank on the security of its own shares of stock, it is argued that this inhibition does not extend to the case of deposits made by one bank with another. But a deposit is nothing but a loan of money, and is within both the letter and spirit of the provision. It is well known that country banks keep on deposit in New York, with bankers and merchants, a considerable amount of money for their own convenience, for which they receive more or less of interest. But whether interest be obtained or not, these deposits are, equally with paper discounted over the counter of the bank, loans of money, and the reason of the rule is equally applicable to them.

Bank v. Lanier/Opinion of the Court

The banker is accountable for the deposits he receives as a debtor, and the individual borrower of money from the bank sustains no other relation to it. In both cases money is borrowed, to be returned in a greater or less period of time, according to the contract of the parties. Without pursuing the subject further, it is clear that the contract between the South Bend Bank and Culver was illegal, and cannot, therefore, be pleaded in avoidance of any duty imposed on the bank. It would seem, from the date of the certificates issued to Culver, that as soon as he took the stock he pledged it, and the bank is therefore without the excuse of endeavoring to secure a pre-existing debt contracted in good faith. The contract in its inception was in violation of law, and the bank cannot complain if it is made to suffer in consequence of it.

Bank v. Lanier/Opinion of the Court

The defence interposed by the second plea is equally unavailing to the plaintiffs in error. This plea assumes that the bank had a lien upon the stock of Culver for his indebtedness to it, without any special agreement on the subject, by virtue of the provisions of the 36th section of the Currency Act of 1863, restricting a shareholder from transferring his stock as long as he owes the bank, which remained in operation, although the section was repealed by the act of 1864, by means of a by-law adopted when the section was in force, declaring that the stock of the bank shall be transferable only on the books of the bank, subject to the provisions and restrictions of the act of Congress aforesaid.