Act of Mar. 3, 1879, sec. 4 (as amended)

Sec. 4. That the trustees of said American Printing House for the Blind shall annually make to the Secretary of the Treasury of the United States a report of the items of their expenditure of the income of said bonds during the year preceding their report, and shall annually furnish him with a voucher from each public or private nonprofit institution for the education of the blind, showing that the amount of books and tangible apparatus due has been received.