Section 250
SEC. 250. Perishable goods, gunpowder, or other dangerous or explosive substances, except firecrackers, shall not be deposited in warehouse, and, if not immediately entered for export or for transportation from the vessel in which imported or entered for consumption and the duties paid thereon, must be, as to perishable goods, sold at public auction by the collector, on giving such public notice, not exceeding three days, as the necessities of the case permit, and as to gunpowder and other dangerous compounds, except firecrackers, such disposition thereof must be made as is consistent with the public safety.