SEC. 16. And be it further enacted, That every association 2 after having complied with the provisions of this act, preliminary to the commencement of banking business under its provisions, and before it shall be authorized to commence business, shall transfer and deliver to the Treasurer of the United States any United States registered bonds bearing interest to an amount not less than thirty thousand dollars nor less than one-third of the capital stock paid in, which bonds shall be deposited with the Treasurer of the United States, and by him safely kept in his office until the same shall be otherwise disposed of in pursuance of the provisions of this act;