Description: Throughout the next months, the Smithsonian Institution Archives will be posting about the Smithsonian and the Civil War in honor of the 150th anniversary of the American Civil War.[edan-image:id=siris_sic_496,size=200,left]This month marks the 150th anniversary of the start of one of the most tumultuous periods in American history—the Civil War (view resources from the
Description: [caption id="" align="aligncenter" width="360" caption="Steven Cohn, the Smithsonian’s Office of Safety, Health and Environmental Management and the museum’s representative Industrial Hygienist, tests Owney's fur for arsenic, lead and mercury. Courtesy of the National Postal Museum "Pushing the Envelope" blog."][/caption] More interesting preservation challenges. We’ve covered