Boyd, Mark F.2012-01-242012-01-2419202012-01-24http://hdl.handle.net/2152.3/326Doors on ship pasted for fumigation purposes. It took ten to twelve hours for a vessel to be safely occupied after fumigation. Rodents were used to determine if the poison had subsided and it was safe for humans to enter.3 x 2 in. black-and-white photographimage/jpegen-USBubonic plagueFumigationGalveston Plague LaboratoryRats -- ControlUnited States Public Health Service