1. Shipping. Quarterly report on employment of American steam and motor merchant vessels of 1,000 gross tons and over as of June 30, 1936 (does not include lake or river tonnage); [prepared in] Division of Shipping Research. Bookmark Corporate/Agency Authors: Shipping Board Bureau and Commerce Department Publisher: Shipping Board Bureau Date: [July 27, 1936.] SuDoc number: C 27.9/7:936/2