Stock exchange practices : hearings before the Committee on Banking and currency United States Senate : seventy-third congress, second session on S. Res. 84 ,72d congress, a resolution to investigate practices of stock exchanges with respect to the buying and selling and the borrowing and lending of listed securities and S. Res. 56 and S. Res. 97 ,73d congress, resolutions to investigate the matter of banking operations and practices, transactions relating to any sale, exchange, purchase, acquisition, borrowing, lending, financing, issuing, distributing, or other disposition of, or dealing in, securities or credit by any person or firm, partnership, company, association, corporation, or other entity with a view to recommending necessary legislation, under the taxing power or other federal powers